{"id":89985,"date":"2022-03-29T17:16:12","date_gmt":"2022-03-29T11:46:12","guid":{"rendered":"https:\/\/bigideasmathanswers.com\/?p=89985"},"modified":"2022-04-07T14:44:28","modified_gmt":"2022-04-07T09:14:28","slug":"envision-math-common-core-grade-1-answer-key-topic-7","status":"publish","type":"post","link":"https:\/\/bigideasmathanswers.com\/envision-math-common-core-grade-1-answer-key-topic-7\/","title":{"rendered":"enVision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence"},"content":{"rendered":"<p>Practice with the help of <a href=\"https:\/\/bigideasmathanswers.com\/envision-math-common-core-grade-1-answer-key\/\">enVision Math Common Core Grade 1 Answer Key<\/a> <strong>Topic 7 Extend the Counting Sequence<\/strong> regularly and improve your accuracy in solving questions.<\/p>\n<h2>enVision Math Common Core 1st Grade Answers Key Topic 7 Extend the Counting Sequence<\/h2>\n<p><strong>Essential Question:<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-2176\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-1.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 1\" width=\"941\" height=\"429\" \/><\/p>\n<p>Find Out Talk to friends and relatives about different types of animal parents and babies. Ask for help finding information about how babies communicate with their parents.<\/p>\n<p>Journal: Make a Book Show what you found out. In your book, also:<\/p>\n<ul>\n<li>Draw how animal parents protect babies and how animal babies communicate with parents.<\/li>\n<li>Go outside or to the zoo and count animal parents and babies. How high can you count?<\/li>\n<\/ul>\n<p><strong>Review What You Know<\/strong><\/p>\n<p><strong>Vocabulary<\/strong><br \/>\nQuestion 1.<br \/>\nCircle the number that is the sum in the equation.<br \/>\n17 = 9 + 8<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7394\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-1.png\" alt=\"\" width=\"159\" height=\"72\" \/><\/p>\n<p>Explanation:<br \/>\nIf we add 9 and 8 we get the sum 17.So, I circled 17.<\/p>\n<p>Question 2.<br \/>\nWrite the parts shown in the model.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2177\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-2.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 2\" width=\"204\" height=\"231\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7395\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-2.png\" alt=\"\" width=\"204\" height=\"231\" \/><\/p>\n<p>Explanation:<br \/>\nIn the above model there are 3 linking cubes in the left and 5 cubes in the right.<\/p>\n<p>Question 3.<br \/>\nCircle the word that tells which part is missing.<br \/>\n7 + <span style=\"text-decoration: underline;\">?<\/span> = 17<br \/>\nsum<br \/>\nequals<br \/>\naddend<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7396\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-3.png\" alt=\"\" width=\"132\" height=\"119\" \/><\/p>\n<p>Explanation:<br \/>\nThe word addend tells us what to be added so, I circled the word addend.<\/p>\n<p><strong>Word Problems<\/strong><br \/>\nQuestion 4.<br \/>\nMargie finds 7 rocks. Kara finds 6 rocks. How many rocks did they find in all?<br \/>\n________ rocks<br \/>\nAnswer:<br \/>\n13 rocks<\/p>\n<p>Explanation:<br \/>\nMargie finds 7 rocks. Kara finds 6 rocks<br \/>\nThe sum of 7 and 6 is 7 + 6 = 13<br \/>\nTherefore they found 13 rocks in all.<\/p>\n<p>Question 5.<br \/>\nTom has 6 toy cars. Jane has some toy cars. They have 11 toy cars in all. How many toy cars does Jane have?<br \/>\n_________ toy cars<br \/>\nAnswer:<br \/>\n5 toy ars<\/p>\n<p>Explanation:<br \/>\nTom has 6 toy cars. Jane has some toy cars. They have 11 toy cars in all<br \/>\nTo find the number of toy cars jane has subtract the number of cars tom has from the total number of cars<br \/>\nThe difference of 11 and 6 is 11 &#8211; 6 = 5<br \/>\nTherefore Jane has 5 toy cars.<\/p>\n<p><strong>The Missing Number<\/strong><br \/>\nQuestion 6.<br \/>\nFind the missing number to solve this addition fact,<br \/>\n_________ 10 + 5<br \/>\nAnswer:<br \/>\n15<\/p>\n<p>Explanation:<br \/>\nThe sum of 10 and 5 is 10 + 5 = 15<br \/>\nSo, the missing number in the addition fact is 15.<\/p>\n<p><strong>Pick a Project<\/strong><\/p>\n<p>Project 7A<br \/>\nWhere do you see stickers?<br \/>\nProject: Sing a Sticker Song<\/p>\n<p>Project 7B<br \/>\nWhen do you keep score?<br \/>\nProject: Make a Scoring Model<\/p>\n<p>Project 7C<br \/>\nHow did they make that?<br \/>\nProject: Make a Quilt Poster<\/p>\n<p>3-ACT MATH PREVIEW<\/p>\n<p>Before watching the video, think:<br \/>\nHave you ever tried to print something bigger than a single piece of paper? What happens if you print something that doesn\u2019t fit on one page? What does it J look like?<\/p>\n<h3>Lesson 7.1 Count by 10s to 120<\/h3>\n<p>Alex put counters in some ten-frames How can you find out how many counters there are without counting each one?<br \/>\nWrite the number.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2178\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-3.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 3\" width=\"414\" height=\"280\" \/><br \/>\n_________ counters in all<br \/>\nAnswer:<br \/>\n100 counters in all.<\/p>\n<p>Explanation:<br \/>\nAlex put counters in some ten-frames.So, count by 10&#8217;s.There are 10 ten frames in the above picture.<br \/>\nTherefore there are 100 counters in all.<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2179\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-4.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 4\" width=\"975\" height=\"304\" \/><\/p>\n<p>Convince Me! When might it be better to count by 10s instead of by 1 s?<br \/>\nIts better we count by tens because it is easy and quick to count by 10&#8217;s thans by 1&#8217;s.<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nCount by 10s. Then write the Practice numbers and the number word.<\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2180\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-5.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 5\" width=\"258\" height=\"215\" \/><\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2181\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-6.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 6\" width=\"166\" height=\"124\" \/><br \/>\n________ tens is ________.<br \/>\n_______________<br \/>\nAnswer:<br \/>\n3 tens is 30<br \/>\nThirty<\/p>\n<p>Explanation:<br \/>\nThere are 3 tens that is thirty counters in the above picture.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nCount by 10s. Then write the Practice numbers and the number word.<\/p>\n<p>Question 3.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2182\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-7.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 7\" width=\"292\" height=\"90\" \/><br \/>\n________ tens is ________.<br \/>\n_______________<br \/>\nAnswer:<br \/>\n7 tens is 70<br \/>\nSeventy<\/p>\n<p>Explanation:<br \/>\nThere are 7 tens that is seventy counters in the above picture.<\/p>\n<p>Question 4.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2183\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-8.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 8\" width=\"249\" height=\"177\" \/><br \/>\n________ tens is ________.<br \/>\n_______________<br \/>\nAnswer:<br \/>\n12 tens is 120<br \/>\nOne hundred and twenty<\/p>\n<p>Explanation:<br \/>\nThere are 120 tens that is one hundred and twenty counters in the above picture.<\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2184\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-9.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 9\" width=\"174\" height=\"185\" \/><br \/>\n________ tens is ________.<br \/>\n_______________<br \/>\nAnswer:<br \/>\n8 tens is 80<br \/>\nEighty<\/p>\n<p>Explanation:<br \/>\nThere are 8 tens that is eighty counters in the above picture.<\/p>\n<p><strong>Write the missing numbers.<\/strong><\/p>\n<p>Question 6.<br \/>\nNumber Sense Jake wrote a pattern. He forgot to write some numbers.<br \/>\nWhat numbers did Jake forget to write?<br \/>\n10, 20, 30, 40, ______, 60, ______, ______, 90, 100, ______, 120<br \/>\nAnswer:<br \/>\n10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120<\/p>\n<p>Explanation:<br \/>\nCount by 10&#8217;s.The missing numbers in Jake&#8217;s number sense are 50, 70, 80, 110.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nDraw counters in the ten-frames to solve each problem below. Solving Then write the numbers and the number word.<\/p>\n<p>Question 7.<br \/>\nModel Jose has 3 boxes. 10 books are in each box. How many books does Jose have in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2185\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-10.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 10\" width=\"224\" height=\"197\" \/><br \/>\n______ tens<br \/>\nAnswer:<br \/>\n3 tens<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7397\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-1.1.png\" alt=\"\" width=\"241\" height=\"221\" \/><\/p>\n<p>Explanation:<br \/>\nJose has 3 boxes. 10 books are in each box.So, I drew 3 ten-frames.<br \/>\n3 tens is thirty.<\/p>\n<p>Question 8.<br \/>\nModel Juan has 4 boxes. There are 10 books in each box. How many books does Juan have in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2186\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-11.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 11\" width=\"286\" height=\"307\" \/><br \/>\n______ tens<br \/>\nAnswer:<br \/>\n4 tens<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7398\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-1.2.png\" alt=\"\" width=\"313\" height=\"310\" \/><\/p>\n<p>Explanation:<br \/>\nJuan has 4 boxes. 10 books are in each box.So, I drew 4 ten-frames.<br \/>\n4 tens is forty.<\/p>\n<p>Question 9.<br \/>\nHigher Order Thinking Dan counts by 5s to 50. Ed counts by 10s to 50. Write the numbers Dan says.<br \/>\n5, ______, ______, ______, ______, ______, ______, ______, ______, 50<br \/>\nWrite the numbers Ed says.<br \/>\n10, ______, ______, ______, 50<br \/>\nWhat numbers do both boys say?<br \/>\n______, ______, ______, ______, ______<br \/>\nAnswer:<br \/>\nDan says<br \/>\n5, 10, 15, 20, 25, 30, 35, 40, 45, 50.<br \/>\nEd says<br \/>\n10, 20, 30, 40, 50.<br \/>\nBoth says<br \/>\n10, 20, 30, 40, 50.<\/p>\n<p>Explanation:<br \/>\nDan counts by 5&#8217;s and Ed counts by 10&#8217;s.<br \/>\nDan says 5, 10, 15, 20, 25, 30, 35, 40, 45, 50<br \/>\nEd says 10, 20, 30, 40, 50<br \/>\nBoth Dan and Ed says 10, 20, 30, 40, 50.<\/p>\n<p>Question 10.<br \/>\n<strong>Assessment Practice<\/strong> Mary has some books. She puts them in piles of 10 without any left over. Which number does NOT show how many books Mary could have?<br \/>\nA. 50<br \/>\nB. 60<br \/>\nC. 65<br \/>\nD. 70<br \/>\nAnswer:<br \/>\n65<\/p>\n<p>Explanation:<br \/>\nMary has some books and she puts them in piles of 10 without any leftover.If mary has 65 books then she has 6 ten piles and 5 books will be left over.As given mary arranged books in ten piles without any books leftover so, the number 656 doesnot show how many books mary could have.<\/p>\n<h3>Lesson 7.2 Count by 1 s to 120<\/h3>\n<p>Help Alex decide what to say after Jada stops counting. Circle the correct one. Explain why that one works.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2187\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-12.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 12\" width=\"707\" height=\"468\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-10050\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-2.1.png\" alt=\"\" width=\"707\" height=\"468\" \/>,<\/p>\n<p>Explanation:<br \/>\nAfter hundred comes one hundred one, when you keep counting forward by 1s the next number is one hundred two and the later number is one hundred three.<br \/>\nAfter 100 comes 101, 102, 103.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-2188\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-13.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 13\" width=\"971\" height=\"294\" \/><\/p>\n<p>Convince Me! How would you say and show 110 when you count? What number comes next?<br \/>\nAnswer:<br \/>\n110<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-10052\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-2.2-1.png\" alt=\"\" width=\"204\" height=\"171\" \/><\/p>\n<p>Explanation:<br \/>\nThe above picture shows a hundred block , a ten block and we say it one hundred ten 110.Therefore count forward by 1s after one hundred ten(110) comes one hundred eleven(111).<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nCount forward by 1 s. Write the numbers.<\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2189\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-14.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 14\" width=\"343\" height=\"71\" \/><\/p>\n<p>Question 2.<br \/>\n______, 110, ______, _____, 113<br \/>\nAnswer:<br \/>\n109, 110, 111, 112, 113.<\/p>\n<p>Explanation:<br \/>\nCount Backward by 1s before 110 we get 109.<br \/>\nCount forward by 1s after 110 we get 111, 112, 113.<\/p>\n<p>Question 3.<br \/>\n104, ______, _______, 107, _______<br \/>\nAnswer:<br \/>\n104, 105, 106, 107, 108.<\/p>\n<p>Explanation:<br \/>\nCount forward by 1s after 104 we get 105, 106, 107, 108.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nCount forward by 1 s. Write the numbers.<\/p>\n<p>Question 4.<br \/>\n110, ______, ______, ______, 114<br \/>\nAnswer:<br \/>\n110, 111, 112, 113, 114.<\/p>\n<p>Explanation:<br \/>\nCount forward by 1s after 110 we get 111, 112, 113, 114.<\/p>\n<p>Question 5.<br \/>\n52, ______, ______, 55, ______<br \/>\nAnswer:<br \/>\n52, 53, 54, 55, 56.<\/p>\n<p>Explanation:<br \/>\nCount forward by 1s after 52 we get 53, 54, 55, 56.<\/p>\n<p>Question 6.<br \/>\n______, 94, ______, 96, ______<br \/>\nAnswer:<br \/>\n93, 94, 95, 96, 97.<\/p>\n<p>Explanation:<br \/>\nCount backward by 1s before 94 we get 93.<br \/>\nCount forward by 1s after 94 we get 95, 96, 97.<\/p>\n<p>Question 7.<br \/>\n______, 102, 103, ______, ______<br \/>\nAnswer:<br \/>\n101, 102, 103, 104, 105.<\/p>\n<p>Explanation:<br \/>\nCount backward by 1s before 102 we get 101.<br \/>\nCount forward by 1s after 103 we get 104, 105.<\/p>\n<p>Question 8.<br \/>\n______, ______, 115, ______, 117<br \/>\nAnswer:<br \/>\n113, 114, 115, 116, 117.<\/p>\n<p>Explanation:<br \/>\nCount backward by 1s before 115 we get 113, 114.<br \/>\nCount forward by 1s after 115 we get 116, 117.<\/p>\n<p>Question 9.<br \/>\n67, ______, ______, ______, 71<br \/>\nAnswer:<br \/>\n67, 68, 69, 70, 71.<\/p>\n<p>Explanation:<br \/>\nCount forward by 1s after 67 we get 68, 69, 70, 71.<\/p>\n<p><strong>Number Sense<\/strong><br \/>\nUse the clues to find each mystery number.<\/p>\n<p>Question 10.<br \/>\nClue 1: The number comes after 116.<br \/>\nClue 2: The number comes before 120.<br \/>\nThe mystery number might be:<br \/>\n______, ______, ______<br \/>\nClue 3: The number has 8 ones.<br \/>\nCircle the mystery number.<br \/>\nAnswer:<br \/>\n118<\/p>\n<p>Explanation:<br \/>\nThe number has 8 in its ones place, as the number comes after 116 and before 120 the number has 1 in hundreds place and 1 in tens place.So, the number is 118. It is said as one hundred eighteen.<\/p>\n<p>Question 11.<br \/>\nClue 1: The number comes before 108.<br \/>\nClue 2: The number comes after 102.<br \/>\nThe mystery number might be:<br \/>\n______, ______, ______, ______, ______<br \/>\nClue 3: The number has 5 ones.<br \/>\nCircle the mystery number.<br \/>\nAnswer:<br \/>\n105<\/p>\n<p>Explanation:<br \/>\nThe number has 5 in its ones place, as the number comes after 102 and before 108 the number has 1 in hundreds place and 0 in tens place.So, the number is 105. It is said as one hundred five.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nSolve each problem below.<\/p>\n<p>Question 12.<br \/>\nVocabulary Marta is counting to 120. She says the number that is one more than 113. What number does she say?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2190\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-15.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 15\" width=\"278\" height=\"128\" \/><br \/>\nAnswer:<br \/>\n114<\/p>\n<p>Explanation:<br \/>\nThe number has 4 in its ones place, as the number comes after 113 and before 120 the number has 1 in hundreds place and 1 in tens place.So, the number is 114. It is said as one hundred fourteen.<\/p>\n<p>Question 13.<br \/>\nIn this chart, Tom writes the numbers 102 to 108 in order. Some numbers rub off. Help Tom fill in the missing numbers.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2191\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-16.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 16\" width=\"411\" height=\"64\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12564\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-2.3.png\" alt=\"\" width=\"411\" height=\"64\" \/><\/p>\n<p>Explanation:<br \/>\nTom counts and writes the numbers from 102 to 108, some numbers were rubbed off.They are 103, 106, 107.<br \/>\nOne more than 102 is 103 also caleed as one hundred three, one more than 105 is 106 also called as one hundred six and one more than 106 is 107 also called as one hundred seven.<\/p>\n<p>Question 14.<br \/>\n<strong>Reasoning<\/strong> Shelly counts 109 bottle caps. Then she counts 4 more. How many bottle caps has Shelley counted?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2192\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-17.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 17\" width=\"300\" height=\"182\" \/><br \/>\n_______ bottle caps<br \/>\nAnswer:<br \/>\n113<\/p>\n<p>Explanation:<br \/>\nShelly counts 109 bottle caps, then she counted four more they are 110, 111, 112 and 113.So, shelly counted 113 bottle caps in all.<\/p>\n<p>Question 15.<br \/>\n<strong>Higher Order Thinking<\/strong> Pick a number greater than 99 and less than 112. Write the number in the box. Then write the three numbers that come before it and the number that comes after it.<br \/>\n_______, _____, ______, \u2610, ______<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12566\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-2.4-1.png\" alt=\"\" width=\"261\" height=\"71\" \/><\/p>\n<p>Explanation:<br \/>\nI picked the number 108, the three numbers that comes before the number i picked are 105, 106 and 107 and the number that comes after the number i picked is 109.<\/p>\n<p>Question 16.<br \/>\n<strong>Assessment Practice<\/strong> which shows the correct order for counting forward by Is? Choose two that apply.<br \/>\n\u2610 103, 104, 105, 102<br \/>\n\u2610 117, 118, 119, 120<br \/>\n\u2610 101, 102, 103, 104<br \/>\n\u2610 114, 112, 110, 108<br \/>\nAnswer:<br \/>\n117, 118, 119, 120<br \/>\n101, 102, 103, 104<\/p>\n<p>Explanation:<br \/>\nThe correct order that shows counting forward by 1s are 117, 118, 119 , 120 and 101, 102, 103, 104 as the gap between the numbers in both sequences is 1.<\/p>\n<h3>Lesson 7.3 Count on a Number Chart to 120<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nPick a number. Write the number in the box. How can you find the number that is 1 more? Write that number. Then write the next 3 numbers.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2193\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-18.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 18\" width=\"762\" height=\"521\" \/><\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12567\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-3.1.png\" alt=\"\" width=\"762\" height=\"521\" \/><\/p>\n<p>Explanation:<br \/>\nI picked the number 55, one more than 55 is 56 which is one box to the right of 55.The next three numbers are 57, 58 and 59.<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2194\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-19.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 19\" width=\"979\" height=\"306\" \/><\/p>\n<p>Convince Me! How do the numbers in a number chart change?<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nCount by 1s. Write the numbers.Use a number chart to help you.<br \/>\nQuestion 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2195\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-20.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 20\" width=\"316\" height=\"57\" \/><\/p>\n<p>Question 2.<br \/>\n21, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n21, 22, 23, 24, 25.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one after 21 is 22, one after 22 is 23, one after 23 is 24 and one after 24 is 25.<\/p>\n<p>Question 3.<br \/>\n103, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n103, 104, 105, 106, 107.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one after 103 is 104, one after 104 is 105, one after 105 is 106 and one after 106 is 107.<\/p>\n<p>Question 4.<br \/>\n_____, _____, 49, _____, _____<br \/>\nAnswer:<br \/>\n47, 48, 49, 50, 51.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one before 48 is 47, one before 49 is 48, one after 49 is 50 and one after 50 is 51.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nCount by 1s. Write the numbers. Use a number chart to help you.<\/p>\n<p>Question 5.<br \/>\n_____, 65, _____, _____, _____<br \/>\nAnswer:<br \/>\n64, 65, 66, 67, 68.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one beforen 64 is 65, one after 65 is 66, one after 66 is 67 and one after 67 is 68.<\/p>\n<p>Question 6.<br \/>\n_____, 52, _____, _____, _____<br \/>\nAnswer:<br \/>\n51, 52, 53, 54, 55.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one before 52 is 51, one after 52 is 53, one after 53 is 54 and one after 54 is 55.<\/p>\n<p>Question 7.<br \/>\n_____, _____, 83, _____, _____<br \/>\nAnswer:<br \/>\n81, 82, 83, 84, 85.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one before 83 is 82, one before 82 is 81, one after 83 is 84 and one after 84 is 85.<\/p>\n<p>Question 8.<br \/>\n110, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n110, 111, 112, 113, 114.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one after 110 is 111, one after 111 is 112, one after 112 is 113 and one after 113 is 114.<\/p>\n<p>Question 9.<br \/>\n_____, _____, _____, _____, 79<br \/>\nAnswer:<br \/>\n75, 76, 77, 78, 79.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one before 79 is 78, one before 78 is 77, one before 77 is 76 and one before 76 is 75.<\/p>\n<p>Question 10.<br \/>\n_____, _____, _____, _____, 98<br \/>\nAnswer:<br \/>\n94, 95, 96, 97, 98.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one before 98 is 97, one before 97 is 96, one before 96 is 95 and one before 95 is 94.<\/p>\n<p>Question 11.<br \/>\n_____, _____, _____, _____, 91<br \/>\nAnswer:<br \/>\n87, 88, 89, 90, 91.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one before 91 is 90, one before 90 is 89, one before 89 is 88 and one before 88 is 87.<\/p>\n<p>Question 12.<br \/>\n_____, _____, _____, 102, _____<br \/>\nAnswer:<br \/>\n99, 100, 101, 102, 103.<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, one before 102 is 101, one before 101 is 100, one before 100 is 99 and one after 102 is 103.<\/p>\n<p><strong>Higher Order Thinking<\/strong><br \/>\nLook at each partial number chart. Write the missing numbers.<\/p>\n<p>Question 13.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2196\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-21.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 21\" width=\"270\" height=\"122\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12569\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-3.2.png\" alt=\"\" width=\"270\" height=\"122\" \/><\/p>\n<p>Explanation:<br \/>\nCount by 1s, one after 34 is 35, one after 36 is 37.<br \/>\nCount by 1s,one before 45 is 44, one before 47 is 46.<\/p>\n<p>Question 14.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2197\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-22.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 22\" width=\"270\" height=\"124\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12570\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-3.3.png\" alt=\"\" width=\"270\" height=\"124\" \/><\/p>\n<p>Explanation:<br \/>\nCount by 1s, one before 98 is 97, one after 98 is 99 and one after 99 i s100.<br \/>\nCount by 1s, one after 107 is 108 and one after 108 is 109.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nUse the number chart to solve each problem.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2198\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-23.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 23\" width=\"401\" height=\"410\" \/><br \/>\nQuestion 15.<br \/>\nUse Tools Billy counts forward to 50. What are the next 5 numbers he counts? Write the numbers.<br \/>\n50, _____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n50, 51, 52, 53, 54, 55.<\/p>\n<p>Explanation:<br \/>\nBilly counts forward to 50.<br \/>\nIf he counts by 1s the next 5 numbers are to the right of the number 50 in the chart, they are 51, 52, 53, 54, 55.<\/p>\n<p>Question 16.<br \/>\nUse Tools Sasha counts forward to 115. What are the next 5 numbers she counts? Write the numbers.<br \/>\n115, _____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n115, 116, 117, 118, 119, 120.<\/p>\n<p>Explanation:<br \/>\nBilly counts forward to 115.<br \/>\nIf he counts by 1s the next 5 numbers are to the right of the number 115 in the chart, they are 116, 117, 118, 119, 120.<\/p>\n<p>Question 17.<br \/>\nHigher Order Thinking Pick a number from the number chart. Count forward. Write the numbers.<br \/>\n_____, _____, _____, _____, _____,<br \/>\n_____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n14, 15, 16, 17, 18<br \/>\n83, 84, 85, 86, 87.<\/p>\n<p>Explanation:<br \/>\nIn the first sequence i picked the number 14, i counted forward by 1s.So, the numbers to the right of 14 in the chart are the next numbers after 14.They are 15, 16, 17, 18.<br \/>\nIn the first sequence i picked the number 83, i counted forward by 1s.So, the numbers to the right of 83 in the chart are the next numbers after 83.They are 84, 85, 86, 87.<\/p>\n<p>Question 18.<br \/>\n<strong>Assessment Practice<\/strong> Draw an arrow to match the missing number to the number chart.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2199\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-24.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 24\" width=\"462\" height=\"156\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12889\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-3.4.png\" alt=\"\" width=\"462\" height=\"156\" \/><\/p>\n<p>Explanation:<br \/>\nI matched the number 114 with the number chart, the missing number in the above number chart is 114.<br \/>\nOne after 113 is 114.Also said as one hundred fourteen.<\/p>\n<h3>Lesson 7.4 Count by 1s or 10s to 120<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nCount by 10s, starting at 10. Color the numbers you count yellow. What pattern do you see? Count by Is, starting at 102. Draw a red square around the numbers. Count by TOs, starting at 34. Draw a blue circle around the numbers. Describe the patterns for each.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2200\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-25.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 25\" width=\"631\" height=\"493\" \/><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-2201\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-26.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 26\" width=\"987\" height=\"303\" \/><\/p>\n<p>Convince Me! Compare counting by Is and by 10s. How are the patterns alike? How are the patterns different?<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nWrite the numbers to continue each pattern. Use a number chart to help you.<\/p>\n<p>Question 1.<br \/>\nCount by 1s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2202\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-27.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 27\" width=\"606\" height=\"46\" \/><\/p>\n<p>Question 2.<br \/>\nCount by 10s.<br \/>\n22, 32, 42, _____, _____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n22, 32, 42, 52, 62, 72, 82, 92, 102.<\/p>\n<p>Explanation:<br \/>\nCount by 10s, the tens that comes after 42 is 52, the next tens is 62, 72 , 82, 92, 102.<\/p>\n<p>Question 3.<br \/>\nCount by 1 s.<br \/>\n90, 91, 92, _____, _____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n90, 91, 92, 93, 94, 95, 96, 97, 98, 99.<\/p>\n<p>Explanation:<br \/>\nCount by 1s, the number that comes after 92 is 93, the next number is 94, 95, 96, 97, 98, 99.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nWrite the numbers to continue each pattern. Use a number chart to help you.<\/p>\n<p>Question 4.<br \/>\nCount by 10s.<br \/>\n10, 20, 30, _____, _____, _____, _____, _____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n10, 20, 30, 40, 50, 60, 70, 80, 90,100, 110, 120.<\/p>\n<p>Explanation:<br \/>\nCount by 1s, The number that comes after 30 is 40, the next number is 50, 60, 70, 80, 90, 100, 110, 120.<\/p>\n<p>Question 5.<br \/>\nCount by 10s.<br \/>\n35, 45, 55, _____, _____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n35, 45, 55, 65, 75, 85, 95, 105, 115.<\/p>\n<p>Explanation:<br \/>\nCount by 10s, the number that comes after 55 is 65, the next number is 75, 85, 95, 105, 115.<\/p>\n<p>Question 6.<br \/>\nCount by 1 s.<br \/>\n102, 103, 104, _____, _____, _____, _____, _____, _____, _____, _____, _____<br \/>\nAnswer:<br \/>\n102, 103, 104, 105, 106, 107, 108, 109, 110, 111,112, 113.<\/p>\n<p>Explanation:<br \/>\nCount by 1s, the number that comes after 104 is 105, the next number is 105, 106, 107, 108, 109, 110, 111, 112, 113.<\/p>\n<p><strong>Number Sense<\/strong><br \/>\nWrite the missing numbers on the number chart below. Then write the next three numbers in the pattern you started. Explain.<\/p>\n<p>Question 7.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2203\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-28.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 28\" width=\"478\" height=\"131\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12995\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-4.1-1.png\" alt=\"\" width=\"478\" height=\"131\" \/><\/p>\n<p>Explanation:<br \/>\nThe missing numbers in the above number chart are 61, 62, 63.<br \/>\nCount by 1s, one number before 62 is 61, Count by 10s the tens that comes after 61 is 71, the next tens is 81.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nSolve each problem below. Use the chart to count.<\/p>\n<p>Question 8.<br \/>\nLook for Patterns Anita walks her neighbor&#8217;s dog to earn money. She starts on Day 13 and walks the dog once a day through Day 19. How many times does Anita walk the dog?<br \/>\n_________ times<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2204\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-29.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 29\" width=\"378\" height=\"90\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12919\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-4.2.png\" alt=\"\" width=\"378\" height=\"90\" \/><\/p>\n<p>Explanation:<br \/>\nAnita walks her neighbour&#8217;s dog, she started on day13 till day19.<br \/>\nStart counting forward by 1s from day 13 to 19,one more than 1 is 2,next 3, so on till day19 we get the number 7.<br \/>\nTherefore, the number of times anita walks the dog is 7.<\/p>\n<p>Question 9.<br \/>\nLook for Patterns Matt starts swimming lessons on Day 5. He goes every 10 days. How many lessons will Matt go to in 30 days?<br \/>\n_________ lessons<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2205\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-30.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 30\" width=\"400\" height=\"115\" \/><br \/>\nExplain the pattern.<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12918\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-4.3.png\" alt=\"\" width=\"400\" height=\"115\" \/><\/p>\n<p>Explanation:<br \/>\nMatt starts swimming lessons on Day 5. He goes every 10 days.<br \/>\nSo, take a number chart upto 30, if we imagine the date of start as 5, count by 10s the second lesson will be on 15, again the third lesson will be on 25<br \/>\nIf we observe the pattern matt goes to lessons for 3 days<br \/>\nTherefore the number of lessons Matt go to in 30 is 3 lessons.<\/p>\n<p>Question 10.<br \/>\n<strong>Higher Order Thinking<\/strong> Anna counts to 30. She only counts 3 numbers. Did Anna count by Is or 10s? Use pictures, numbers, or words to explain.<br \/>\nAnswer:<br \/>\nShe counts by 10s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12917\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-4.4.png\" alt=\"\" width=\"400\" height=\"115\" \/><\/p>\n<p>Explanation:<br \/>\nAnna counts to 30. She only counts 3 numbers<br \/>\nIf anna counts by 1s anna would count 30 numbers<br \/>\nIf anna counts only three numbers till 30 it means she counted by 10s<br \/>\nIn the above number chart shows that anna counts only t3 numbers if she counts by 10s till 30.<\/p>\n<p>Question 11.<br \/>\n<strong>Assessment Practice<\/strong> Tim counts by 10s, starting at 54.<br \/>\n54, 74, 84, 94, 114<br \/>\nWhat numbers did Tim forget to count?<br \/>\nAnswer:<br \/>\n64, 104.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-12916\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-4.5.png\" alt=\"\" width=\"492\" height=\"470\" \/><\/p>\n<p>Explanation:<br \/>\nIn the number number chart i colored the numbers by 54, 74, 84, 94, 114, If tim counts by 10s from 54 he missed the numbers 64 and 104.<br \/>\nTim fortgot to count 64 and 104<\/p>\n<h3>Lesson 7.5 Count on an Open Number Line<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nUse the open number line to show how to count from 78 to 84.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2206\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-31.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 31\" width=\"644\" height=\"388\" \/><\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13376\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.1.png\" alt=\"\" width=\"569\" height=\"151\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 78, I count the jumps by 1s untill i get 84.<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2207\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-32.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 32\" width=\"984\" height=\"296\" \/><\/p>\n<p>Convince Me! Use an open number line. What number comes after 109 when you count on by 1 s? What number comes after 109 when you count on by 10s?<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nShow your counting on the open number line.<\/p>\n<p>Question 1.<br \/>\nStart at 99. Count on by 1 s to 105.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2208\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-33.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 33\" width=\"580\" height=\"128\" \/><br \/>\nAnswer:<br \/>\nI started at 99, I count the jumps by 1s untill i get 105.<\/p>\n<p>Question 2.<br \/>\nStart at 72. Count on by 10s to 112.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2209\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-34.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 34\" width=\"583\" height=\"67\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13377\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.2.png\" alt=\"\" width=\"414\" height=\"147\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 72, I count the jumps by 10s untill i get 112.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nShow your counting on the open number line.<\/p>\n<p>Question 3.<br \/>\nStart at 89. Count on by 10s to 119.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2210\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-35.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 35\" width=\"685\" height=\"43\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13378\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.3.png\" alt=\"\" width=\"366\" height=\"154\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 89, I count the jumps by 10s untill i get 119.<\/p>\n<p>Question 4.<br \/>\nStart at 1 1 1. Count on by 1 s to 118.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2210\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-35.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 35\" width=\"685\" height=\"43\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13379\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.4.png\" alt=\"\" width=\"678\" height=\"159\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 111, I count the jumps by 1s untill i get 118.<\/p>\n<p>Question 5.<br \/>\nNumber Sense Teresa and Doug both draw a number line starting at 27. Teresa counts on by 1 s five times. Doug counts on by 10s five times. Will they stop counting at the same number? Explain.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2211\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-36.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 36\" width=\"904\" height=\"284\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13380\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.5.png\" alt=\"\" width=\"616\" height=\"126\" \/><\/p>\n<p>Explanation:<br \/>\nTeresa<br \/>\nI started at 27, I count the jumps by 1s i will get 32.<br \/>\nDoug<br \/>\nI started at 27, I count the jumps by 10s i will get 77.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nUse the number line to solve each story problem.<\/p>\n<p>Question 6.<br \/>\nModel Dennis counts 41 marbles. Then he counts 8 more marbles. How many marbles did he count in all?<br \/>\n_________ marbles<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2212\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-37.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 37\" width=\"687\" height=\"76\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13381\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.6.png\" alt=\"\" width=\"735\" height=\"155\" \/><\/p>\n<p>Explanation:<br \/>\n8 more than 41 is 49<br \/>\nI started at 41, I count the jumps by 1s for 8 times i will get 49.<\/p>\n<p>Question 7.<br \/>\n<strong>Higher Order Thinking<\/strong> On Monday, Kate puts 12 pennies in her piggy bank. On Tuesday, she puts some more pennies in her bank. She puts 19 pennies in all in her bank. How many pennies did she put in her bank on Tuesday?<br \/>\n_________ pennies<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2213\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-38.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 38\" width=\"685\" height=\"81\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13382\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.7.png\" alt=\"\" width=\"659\" height=\"152\" \/><\/p>\n<p>Explanation:<br \/>\nKate puts 12 pennies in her piggy bank on monday.<br \/>\nI started at 12, I count the jumps by 1s untill i get 19.So, the number of jumps is the number of pennies kate put in her piggy bank on tuesday.I counted 7 jumps of 1s.<br \/>\nTherefore kate put 7 pennies in her piggy bank on tuesday.<\/p>\n<p>Question 8.<br \/>\n<strong>Assessment Practice<\/strong> Tim showed his counting on this number line.<br \/>\nComplete the sentence to show how he counted.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2214\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-39.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 39\" width=\"691\" height=\"122\" \/><br \/>\nTim counted by ________ from ________ to _______.<br \/>\nAnswer:<br \/>\nTim counted by 10s from 44 to 104<\/p>\n<p>Explanation:<br \/>\nThe number line started at 44 and ended at 104, the gap between each jump is 10.So, tim counted the numbers by 10s from 44 to 104.<\/p>\n<h3>Lesson 7.6 Count and Write Numerals<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nLook at the oranges below. Count to find out how many in all and then write the number. Explain how you counted the oranges.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2133\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-40.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 40\" width=\"631\" height=\"452\" \/><br \/>\nThere are _______ oranges.<br \/>\nAnswer:<br \/>\nThere are 25 oranges<\/p>\n<p>Explanation:<br \/>\nI counted by 1s, i started at 1 and\u00a0 i counted 24 more.I ended at 25.So, 1 + 24 =25.<br \/>\nThere are 25 oranges in all in the above picture.<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2215\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-7-Extend-the-Counting-Sequence-41.png\" alt=\"Envision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence 41\" width=\"979\" height=\"312\" \/><\/p>\n<p>Convince Me! Start at 19 and count on 6 more. Then write the numeral that you ended on.<br \/>\nAnswer:<br \/>\n2<\/p>\n<p>Explanation:<br \/>\nI started at 19, i counted 6 more i ended at 25. So, 19+6=25.<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nCount the objects any way you choose. Then write how many in all.<\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2134\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-42.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 42\" width=\"252\" height=\"200\" \/><\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2135\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-43.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 43\" width=\"296\" height=\"142\" \/><br \/>\n_________ rabbits<br \/>\nAnswer:<br \/>\n28 rabbits<\/p>\n<p>Explanation:<br \/>\nI counted by 10s, i can count 10, 20 and i counted by 1s there are 8 ones left. I added 8 ones to 20.<br \/>\nSo, the number of rabbits is 28.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nCount the objects. Then write how many in all.<\/p>\n<p>Question 3.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2136\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-44.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 44\" width=\"267\" height=\"312\" \/><br \/>\n_________ socks<br \/>\nAnswer:<br \/>\n62 socks<\/p>\n<p>Explanation:<br \/>\nI counted by 10s, i can count 10, 20, 30, 40, 50, 60 and i counted by 1s there are 2 ones left. I added 2 ones to 60.<br \/>\nSo, the number of rabbits is 62.<\/p>\n<p>Question 4.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2137\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-45.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 45\" width=\"262\" height=\"336\" \/><br \/>\n_________ bananas<br \/>\nAnswer:<br \/>\n54 bananas<\/p>\n<p>Explanation:<br \/>\nI counted by 10s, i can count 10, 20, 30, 40, 50 and i counted by 1s there are 4 ones left. I added 4 ones to 50.<br \/>\nSo, the number of rabbits is 54.<\/p>\n<p>Use place-value blocks to count the tens and ones. Then write how many in all.<br \/>\nQuestion 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2138\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-46.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 46\" width=\"203\" height=\"89\" \/><br \/>\n______ tens _______ ones ______ in all<br \/>\nAnswer:<br \/>\n11 tens 1 ones in all<\/p>\n<p>Explanation:<br \/>\nCount the 10s, there are 11 ten blocks and count by 1s there are 1 one block.So, there are 11 tens and 1 ones in all.<\/p>\n<p>Question 6.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2139\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 47\" width=\"163\" height=\"91\" \/><br \/>\n______ tens _______ ones _______ in all<br \/>\nAnswer:<br \/>\n8 tens 3 ones in all<\/p>\n<p>Explanation:<br \/>\nCount the 10s, there are 8 ten blocks and count by 1s there are 13one blocks.So, there are 8 tens and 3 ones in all.<\/p>\n<p>Question 7.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2140\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-48.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 48\" width=\"187\" height=\"84\" \/><br \/>\n______ tens _______ ones _______ in all<br \/>\nAnswer:<br \/>\n12 tens 0 ones in all<\/p>\n<p>Explanation:<br \/>\nCount the 10s, there are 12 ten blocks and count by 1s there is no one block.So, there are 12 tens and 0 ones in all.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nSolve the problems below.<\/p>\n<p>Question 8.<br \/>\n<strong>Reasoning<\/strong> Daniel finds 3 boxes of teddy bears and 4 more teddy bears. Each box holds 10 teddy bears. How many teddy bears did Daniel find?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2141\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-49.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 49\" width=\"418\" height=\"93\" \/><br \/>\nDaniel found _______ teddy bears.<br \/>\nAnswer:<br \/>\nDaniel found 34 teddy bears.<\/p>\n<p>Explanation:<br \/>\nI counted by 10s, i can count 10, 20, 30 and i counted by 1s there are 4 ones left. I added 4 ones to 30.<br \/>\nSo, the number of rabbits is 34.<\/p>\n<p>Question 9.<br \/>\n<strong>Reasoning<\/strong> Kim has 8 boxes and 6 more party hats. There are 10 party hats in each box. How many party hats does Kim have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2142\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-50.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 50\" width=\"435\" height=\"152\" \/><br \/>\nKim has ________ party hats.<br \/>\nAnswer:<br \/>\nKim has 86 party hats.<\/p>\n<p>Explanation:<br \/>\nI counted by 10s, i can count 10, 20, 30, 40, 50, 60, 70, 80\u00a0 and i counted by 1s there are 6 ones left. I added 6 ones to 80.<br \/>\nSo, the number of rabbits is 86.<\/p>\n<p>Question 10.<br \/>\n<strong>Higher Order Thinking<\/strong> Write the number of objects you see. Tell how you counted them.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2143\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-51.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 51\" width=\"195\" height=\"184\" \/><br \/>\nAnswer:<br \/>\nThere are 13 objects.<\/p>\n<p>Explanation:<br \/>\nI counted by ones, i started at 1 counted 12 more and i ended at 13.So, 1+12=13.<br \/>\nTherefore there are 13 objects.<\/p>\n<p>Question 11.<br \/>\n<strong>Assessment Practice<\/strong> How many strawberries are shown below?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2144\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-52.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 52\" width=\"226\" height=\"285\" \/><br \/>\nA. 18<br \/>\nB. 24<br \/>\nC. 26<br \/>\nD. 62<br \/>\nAnswer:<br \/>\nC.26<\/p>\n<p>Explanation:<br \/>\nIn the above picture there are 26 strawberries.I counted by 1s.I started at 1, counted 25 and i ended at 26.So, 1+25=26.<br \/>\nTherefore there are 26 strawberries in the above picture.<\/p>\n<h3>Lesson 7.7 Problem Solving<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nHow can you find the number of apples on the ground without counting them one at a time? Explain your shortcut.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2145\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-53.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 53\" width=\"765\" height=\"302\" \/><br \/>\nThinking Habits Is there a shortcut that makes sense? What can I use from this problem to help with another problem?<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2146\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-54.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 54\" width=\"971\" height=\"289\" \/><\/p>\n<p>Convince Me! Why is counting by 10s and is better than counting at a time?<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nHow many in all? Use a shortcut to count on. Tell what shortcut you used.<\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2147\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-55.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 55\" width=\"290\" height=\"314\" \/><\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2148\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-56.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 56\" width=\"246\" height=\"213\" \/><br \/>\n_______ muffins I counted on by __________.<br \/>\nAnswer:<br \/>\n84 muffins I counted on by 10s and 1s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13386\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-7.1.png\" alt=\"\" width=\"274\" height=\"239\" \/><\/p>\n<p>Explanation:<br \/>\nI gouped 10s there are 2 tens and 4 are left over.So, 2tens 4 ones is 24<br \/>\nThere are already 60 muffins add 24 to it.<br \/>\n60+24=84<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nHow many in all? Use a shortcut to count on. Tell what shortcut you used.<\/p>\n<p>Question 3.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2149\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-57.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 57\" width=\"366\" height=\"179\" \/><br \/>\n_______ watches I counted on by __________.<br \/>\nAnswer:<br \/>\n45 watches I counted on by 10s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13387\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-7.2.png\" alt=\"\" width=\"361\" height=\"231\" \/><\/p>\n<p>Explanation:<br \/>\nI gouped 10s there are 2 tens and no are left over.So, 2tens is 20<br \/>\nThere are already 25 watches add 20 to it,<br \/>\n25+20=45.<\/p>\n<p>Question 4.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2150\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-58.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 58\" width=\"340\" height=\"171\" \/><br \/>\n________ train cars I counted on by ___________.<br \/>\nAnswer:<br \/>\n44 train cars I counted on by 10s and 1s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13388\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-7.3.png\" alt=\"\" width=\"361\" height=\"205\" \/><\/p>\n<p>Explanation:<br \/>\nI gouped 10s there is 1 tens and 2 are left over.So, 1tens 2 ones is 12<br \/>\nThere are already 32 train cars add 12 to it.<br \/>\n32+12=44<\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2151\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-59.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 59\" width=\"286\" height=\"212\" \/><br \/>\n__________ books I counted on by ____________.<br \/>\nAnswer:<br \/>\n59 books I counted by 10s and 1s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13389\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-7.4.png\" alt=\"\" width=\"287\" height=\"246\" \/><\/p>\n<p>Explanation:<br \/>\nI gouped 10s there is 1 tens and 4 are left over.So, 1tens 4 ones is 14<br \/>\nThere are already 45 books add 14 to it.<br \/>\n45+14=59<\/p>\n<p>Question 6.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2152\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-60.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 60\" width=\"334\" height=\"250\" \/><br \/>\n_______ desks I counted on by ____________.<br \/>\nAnswer:<br \/>\n38 desks I counted on by 1s.<br \/>\nThere are 8 ones and there are already 30 desks, add 8 to 30<br \/>\n30+8 = 38<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nPerformance Task<\/p>\n<p>Students and Snowmen<br \/>\n62 students stay inside at recess. The rest each build a snowman outside. How can you count to find the number of students in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2153\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-61.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 61\" width=\"451\" height=\"269\" \/><\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13398\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-7.5.png\" alt=\"\" width=\"497\" height=\"276\" \/><\/p>\n<p>Question 7.<br \/>\n<strong>Make Sense<\/strong> What do you know about the students? What do you need to find?<br \/>\nAnswer:<br \/>\nI know how many students are inside the recess an di need to find how many students build the snow man outside.<\/p>\n<p>Question 8.<br \/>\n<strong>Reasoning<\/strong> What does the number of snowmen tell me?<br \/>\nAnswer:<br \/>\nThe number of snowman tells the number of students outside.<\/p>\n<p>Question 9.<br \/>\n<strong>Generalize<\/strong> How many students in all? What shortcut did you use to find the answer?<br \/>\nAnswer:<br \/>\nThere are 62 students aat the recess and there are 43 students outside<br \/>\nI counted the snow man by 10s and 1s, there are 4 tens and 3 ones are left over, 4 tens 3 ones is 43<br \/>\n62 + 43 = 105<br \/>\nTherefore there are 105 students in all.<\/p>\n<h3>Topic 7 Fluency Practice Activity<\/h3>\n<p>Show the Word<br \/>\nColor these sums and differences. Leave the rest white.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2154\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-62.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 62\" width=\"349\" height=\"82\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2155\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-63.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 63\" width=\"922\" height=\"420\" \/><br \/>\nThe word is<br \/>\n__________ ___________ __________<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13390\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-4.png\" alt=\"\" width=\"922\" height=\"420\" \/><\/p>\n<p>The word is HOP.<\/p>\n<p><strong>Vocabulary Review<\/strong><\/p>\n<p>Understand Vocabulary<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2156\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-64.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 64\" width=\"251\" height=\"255\" \/><br \/>\nQuestion 1.<br \/>\nCircle the number that shows the ones digit.<br \/>\n1 0 6<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13403\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-5.png\" alt=\"\" width=\"98\" height=\"53\" \/><\/p>\n<p>Explanation:<br \/>\nI circled the ones digit.Here 6 is 6 ones.<\/p>\n<p>Question 2.<br \/>\nCircle the number that shows the tens digit.<br \/>\n1 0 6<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13404\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-6.png\" alt=\"\" width=\"79\" height=\"57\" \/><\/p>\n<p>Explanation:<br \/>\nI circled the tens digit.Here 0 is 0 tens that means there are no tens in the number 106.<\/p>\n<p>Question 3.<br \/>\nCircle a column in the part of the hundred chart.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2157\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-65.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 65\" width=\"171\" height=\"82\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13405\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-7.png\" alt=\"\" width=\"185\" height=\"113\" \/><\/p>\n<p>Explanation:<br \/>\nI circled the column. A column is an arrangement of numbers one above the other.<\/p>\n<p>Question 4.<br \/>\nCircle a row in the part of the number chart.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2158\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-66.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 66\" width=\"174\" height=\"97\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13406\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-8.png\" alt=\"\" width=\"190\" height=\"90\" \/><\/p>\n<p>Explanation:<br \/>\nI circled the row. A row is an arrangement of numbers one beside the other.<\/p>\n<p>Question 5.<br \/>\nCircle the number on the chart that is 1 more than 101.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2159\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-67.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 67\" width=\"167\" height=\"85\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13407\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-9.png\" alt=\"\" width=\"183\" height=\"87\" \/><\/p>\n<p>Explanation:<br \/>\nI circled 102. Count by 1s, one after 101 is 102 also called as one hundred two.<\/p>\n<p><strong>Use Vocabulary in Writing<\/strong><br \/>\nQuestion 6.<br \/>\nFill in the number chart to count on from 95 to 106. Explain the difference between a number chart and a hundred chart. Label the chart using words from the Word List.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2160\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-68.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 68\" width=\"400\" height=\"81\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13408\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-10.png\" alt=\"\" width=\"550\" height=\"241\" \/><\/p>\n<p>Explanation:<br \/>\nA numbe rchart is a table that lists the numbers in numerical order for example 1-10 in first line, 11-20 in second line and so on whereas a hundreds chart contains numerals from 1-100.<br \/>\nI labeled a column, row, ones digit and a tens digit.<\/p>\n<h3>Topic 7 Reteaching<\/h3>\n<p><strong>Set A<\/strong><\/p>\n<p>You can count by 10s when you have a lot of objects to count.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2161\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-69.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 69\" width=\"354\" height=\"250\" \/><\/p>\n<p>Count by 10s. Write the number 3 different ways.<br \/>\nQuestion 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2162\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-70.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 70\" width=\"485\" height=\"121\" \/><br \/>\n_______ tens<br \/>\nnumber: ________<br \/>\nword name: _____________<br \/>\nAnswer:<br \/>\nThere are 10 tens<br \/>\n10 tens = 100<br \/>\nThe word name for 100 is hundred.<\/p>\n<p>Explanation:<br \/>\nCount by 10s, there are 10 tens in the above picture.<\/p>\n<p><strong>Set B<\/strong><\/p>\n<p>You can use a number chart to count on by 1 s or 10s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2163\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-71.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 71\" width=\"378\" height=\"259\" \/><\/p>\n<p>Use a number chart to count on.<br \/>\nQuestion 2.<br \/>\nCount by 10s.<br \/>\n80, ______, ______, ______, ______<br \/>\nAnswer:<br \/>\n80, 90, 100, 110, 120.<\/p>\n<p>Explanation:<br \/>\nCount by 10s, i started at 80, i can count 90, 100, 110 and 120.<\/p>\n<p>Question 3.<br \/>\nCount by 1 s.<br \/>\n114, ______, ______, ______, ______<br \/>\nAnswer:<br \/>\n114, 115, 116, 117, 118.<\/p>\n<p>Explanation:<br \/>\nCount by 1s, i started at 114, i can count 115, 116, 117, 118.<\/p>\n<p><strong>Set C<\/strong><\/p>\n<p>You can use an open number line to count on by 1 s or 10s.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2164\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-72.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 72\" width=\"369\" height=\"272\" \/><\/p>\n<p>Count on using the open number line.<br \/>\nQuestion 4.<br \/>\nStart at 62. Count on by 10s to 102.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2165\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-73.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 73\" width=\"305\" height=\"51\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13411\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-11.png\" alt=\"\" width=\"315\" height=\"132\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 62, I count the jumps by 10s till i get 102.<\/p>\n<p>Question 5.<br \/>\nStart at 97. Count on by Is to 101.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2165\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-73.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 73\" width=\"305\" height=\"51\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13412\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-12.png\" alt=\"\" width=\"302\" height=\"135\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 97, I count the jumps by 1s till i get 101.<\/p>\n<p><strong>Set D<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-2166\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-74.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 74\" width=\"402\" height=\"362\" \/><\/p>\n<p>Count on by a number to find how many in all.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2167\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-75.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 75\" width=\"397\" height=\"153\" \/><\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13413\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-13.png\" alt=\"\" width=\"417\" height=\"191\" \/><\/p>\n<p>Question 6.<br \/>\nEighty puzzle pieces are in the box. How many puzzle pieces are there in all? Explain how you counted.<br \/>\n_________ pieces<br \/>\nAnswer:<br \/>\n106<\/p>\n<p>Explanation:<br \/>\nTo find the number of puzzle pieces outside<br \/>\nCount by 10s, there are 2 tens and 6 ones left, 2 tens and 6 ones is 26<br \/>\nThee are already 80 puzzle pieces in the box, add 26 to 80, 80+26=106<br \/>\nTherefore there are 106 pieces in all.<\/p>\n<h3>Topic 7 Assessment Practice<\/h3>\n<p>Question 1.<br \/>\nCount by 10s. What number is shown? Write the number 3 different ways.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2168\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-76.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 76\" width=\"497\" height=\"190\" \/><br \/>\n_________ tens<br \/>\nnumber: _________<br \/>\nword name: __________<br \/>\nAnswer:<\/p>\n<p>There are 6 tens<br \/>\n6 tens = 60<br \/>\nThe word name for 60 is Sixty.<\/p>\n<p>Explanation:<br \/>\nCount by 10s, there are 6 tens in the above picture.<\/p>\n<p>Use the partial number chart below to solve each problem.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2169\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-77.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 77\" width=\"587\" height=\"159\" \/><\/p>\n<p>Question 2.<br \/>\nCathy counts pennies by 1 s. She counts to 98. Which number will Cathy say next?<br \/>\nA. 89<br \/>\nB. 90<br \/>\nC. 99<br \/>\nD. 108<br \/>\nAnswer:<br \/>\n99<\/p>\n<p>Explanation:<br \/>\nAs Cathy counts by 1s, one after 98 is 99.<\/p>\n<p>Question 3.<br \/>\nSam counts by 10s.<br \/>\n80, 90, 100, 120<br \/>\nWhich number did he forget to count?<br \/>\nA. 89<br \/>\nB. 105<br \/>\nC. 110<br \/>\nD. 115<br \/>\nAnswer:<br \/>\n110<\/p>\n<p>Explanation:<br \/>\nAs sam counts by 10s, the tens that comes after 100 is 110.<br \/>\nSo, sam forgot to count 110.<\/p>\n<p>Show your counting on the open number line.<br \/>\nQuestion 4.<br \/>\nStart at 58. Count on by 10 s to 98.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2170\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-78.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 78\" width=\"414\" height=\"49\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13512\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-14.png\" alt=\"\" width=\"401\" height=\"129\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 58, I count the jumps by 10s till i get 98.<\/p>\n<p>Question 5.<br \/>\nStart at 114. Count on by 1 s to 118.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2170\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-78.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 78\" width=\"414\" height=\"49\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13513\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-15.png\" alt=\"\" width=\"404\" height=\"135\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 114, I count the jumps by 1s till i get 118.<\/p>\n<p>Question 6.<br \/>\nAlex sees some baby chicks at the farm. 50 chicks are in the hen house. How many baby chicks in all? Use the picture to solve.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2171\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-79.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 79\" width=\"307\" height=\"298\" \/><br \/>\nA. 68<br \/>\nB. 72<br \/>\nC. 78<br \/>\nD. 80<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13514\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-16.png\" alt=\"\" width=\"336\" height=\"314\" \/><\/p>\n<p>Explanation:<br \/>\nCount by 10s, there are 2 tens and 8 ones left, 2 tens and 8 ones is 28.<br \/>\nThere are already 50 chicks, add 28 to it.So, 50+28=78.<br \/>\nTherefore there are 78 chicks in all.<\/p>\n<p>Question 7.<br \/>\nThe farm worker says there are 82 chicks this morning. Some of the chicks are hiding. How many chicks are hiding? Use your answer from Item 6 to solve. Then explain how you know.<br \/>\nAnswer:<br \/>\n4<\/p>\n<p>Explanation:<br \/>\n4 chicks are hiding<br \/>\nThe farm worker told that there ared 82 chicks in the morning, as we can see in the above question we found that there are 78 chicks, subtract 78 from 84<br \/>\n84-78=4<br \/>\nTherefore 4 chicks are hiding.<\/p>\n<h3>Topic 7 Performance Task<\/h3>\n<p>Maya&#8217;s Marbles<br \/>\nMaya collects marbles and keeps them in jars.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2172\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-80.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 80\" width=\"332\" height=\"151\" \/><br \/>\nQuestion 1.<br \/>\nHow many blue marbles does Maya have? Circle groups of 10. Then count by 10s. Write the numbers and the number word.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2173\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-81.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 81\" width=\"300\" height=\"237\" \/><br \/>\n__________ groups of 10 marbles<br \/>\n_________ marbles<br \/>\n_________ marbles<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13517\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-17.png\" alt=\"\" width=\"356\" height=\"306\" \/><\/p>\n<p>Explanation:<br \/>\nI circled group of 10 marbles, there are<br \/>\n5 groups of 10 marbles<br \/>\n50 marbles<br \/>\nFifty marbles.<\/p>\n<p>Question 2.<br \/>\nMaya has some striped marbles. Use these clues to find out how many she has.<br \/>\nClue 1: The number comes after 110.<br \/>\nClue 2: The number comes before 120.<br \/>\nClue 3: The number does NOT have 4 ones.<br \/>\nClue 4: The number in the ones place is the same as the number in the tens place.<br \/>\nMaya has ________ striped marbles.<br \/>\nAnswer:<br \/>\nMaya has 111 striped marbles.<\/p>\n<p>Explanation:<br \/>\nThe number comes after 110, before 120 and do not has 4 in ones place are 111, 112, 113, 115, 116, 117, 118, 119.<br \/>\nThe number has ones place the same digit as tens as the above numbers has 1 in tens place so, the missing number will also have 1 in ones place.<br \/>\nThetefore the number is 111.<\/p>\n<p>Question 3.<br \/>\nMaya has 105 small marbles in a jar. She puts 13 more small marbles in the jar. How many small marbles are in the jar now? Solve using the number line or part of the number chart. Then explain how you solved.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2174\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-82.1.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 82.1\" width=\"371\" height=\"173\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13587\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-18.png\" alt=\"\" width=\"861\" height=\"246\" \/><\/p>\n<p>Explanation:<br \/>\nI started at 105, I count the 13 jumps by 1s from 105 we get 118.<\/p>\n<p>Question 4.<br \/>\nMaya has 48 large marbles in a jar. There are more large marbles on the floor. How can you count to find how many large marbles Maya has in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2175\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-7-Extend-the-Counting-Sequence-82.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 7 Extend the Counting Sequence 82\" width=\"298\" height=\"211\" \/><br \/>\nWhat do you know about the large marbles?<br \/>\n_______________________<br \/>\n_______________________<br \/>\nWhat shortcut did you use to count the marbles? Tell how you counted.<br \/>\n_______________________<br \/>\n_______________________<br \/>\n_______________________<br \/>\nMaya has ________ large marbles in all.<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-13588\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-CommonCore-Grade1-Answerkey-Topic7-19.png\" alt=\"\" width=\"345\" height=\"252\" \/><\/p>\n<p>Explanation:<br \/>\nThere are 48 large marbles in the jar<br \/>\nI counted by 10s and 1s<br \/>\nThere are 1 tens and 3 ones left, one tens and 3 ones is 13.<br \/>\nAdd 13 to 48, 48+13=61<br \/>\nTherefore Maya has 61 large marbles in all.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Practice with the help of enVision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence regularly and improve your accuracy in solving questions. enVision Math Common Core 1st Grade Answers Key Topic 7 Extend the Counting Sequence Essential Question: Find Out Talk to friends and relatives about different types of animal &#8230; <a title=\"enVision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence\" class=\"read-more\" href=\"https:\/\/bigideasmathanswers.com\/envision-math-common-core-grade-1-answer-key-topic-7\/\" aria-label=\"More on enVision Math Common Core Grade 1 Answer Key Topic 7 Extend the Counting Sequence\">Read more<\/a><\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/89985"}],"collection":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/comments?post=89985"}],"version-history":[{"count":1,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/89985\/revisions"}],"predecessor-version":[{"id":89986,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/89985\/revisions\/89986"}],"wp:attachment":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/media?parent=89985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/categories?post=89985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/tags?post=89985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}