Go Math Grade 3 Answer Key Chapter 1 Addition and Subtraction within 1,000 Extra Practice makes you familiar with a variety of topics in it. HMH Go Math Grade 3 Solution Key Chapter 1 Addition and Subtraction within 1,000 helps you learn problems from basic to advanced level. Practice using the Grade 3 Go Math Answer Key Ch 1 Extra Practice and learn different questions.<\/p>\n
There are different methods to solve additions and subtractions. Check out them before beginning your preparation and learn the topics within it. Extra Practice Go Math Grade 3 Answer Key Chapter 1 Addition and Subtraction within 1,000 helps you attain better grades.<\/p>\n
Find the sum. Then use the Commutative Property of Addition to write the related addition sentence.
\nQuestion 1:
\n5 + 7 = __
\n__ + __ = __<\/p>\n
Answer: 5 + 7 = 12<\/span><\/p>\n According to the commutative property of addition, changing the order of the numbers we are adding, does not change the sum. Question 2: __ + __ = __<\/p>\n Answer: 4 + 9 = 13<\/span><\/p>\n According to the commutative property of addition, changing the order of the numbers we are adding, does not change the sum. Question 3: __ + __ = __<\/p>\n Answer: 0 + 5 = 5<\/span><\/p>\n According to the commutative property of addition, changing the order of the numbers we are adding, does not change the sum. Round to the nearest ten and hundred. Answer: Question 5: Answer: Question 6: Answer:<\/p>\n The nearest ten is 870 Use rounding or compatible numbers to estimate the sum. Answer:<\/p>\n The round figure of 24 is 25. Question 8: Answer:<\/p>\n Rounding Numbers to the nearest 10 means finding which 10 they are nearest to. 112 nearest to 10 is 110 and the number rounded to 79 is 80. Question 9: Answer:<\/p>\n The number rounded 583 is 600 and the number rounded to 169 is 170. Use mental math to find the sum. Answer: Question 11: Answer: Question 12: Answer: Use addition properties and strategies to find the sum. Answer: 160 13 Step 2: Step 3: Question 14: Answer: 131<\/p>\n Step 1: Step 2: Step 3: Estimate. Then find the sum. Answer:\u00a0 714 Question 2: Answer: 664 Question 3: Answer: 583 Question 4: Answer: 901 Use rounding or compatible numbers to estimate the difference. Answer: 35<\/p>\n Compatible numbers are the numbers that are easy to compute mentally and are close to the real numbers. Question 6: Answer: 120<\/p>\n Compatible numbers are the numbers that are easy to compute mentally and are close to the real numbers. Question 7: Answer:<\/p>\n Compatible numbers are the numbers that are easy to compute mentally and are close to the real numbers. Lesson 1.9<\/p>\n Use mental math to find the difference. Answer: 51 Question 9: Answer: 326 Make the number you subtract a friendly number Step 2:<\/p>\n Since you add 6 to 125 you have to add 6 to 451 Question 10: Answer: 344<\/p>\n Step 1:<\/p>\n Make the number you subtract a friendly number. Step 2:<\/p>\n Since you add 1 to 359 you have to add 1 to 703 = 704 Estimate. Then find the difference. Answer: 300 Question 12: Answer: 300 Question 13: Answer: 500<\/p>\n The actual difference of 763 and 295 is 468 Question 14: Answer: 600<\/p>\n The number rounded to 848 is 800 and the number rounded to 209 is 200. Question 15: Answer: 17 pages<\/p>\n Explanation:<\/p>\n Sara read 81 pages in her book. Question 16:<\/p>\n Herb planted 28 pea plants. He planted 15 fewer tomato plants. How many pea and tomato plants did Herb plant in all? Answer: 41 plants<\/p>\n Explanation:<\/p>\n Herb planted 28 pea plants. Without the Fundamentals of additions and subtractions,\u00a0 you can’t solve problems of advanced level. Learn the basics that aid you in clearing your homework and assessment. Assess your preparation standard by solving the problems in the Go Math Grade 3 Answer Key Chapter 1 Addition and Subtraction within 1,000 Extra Practice.<\/p>\n","protected":false},"excerpt":{"rendered":" Go Math Grade 3 Answer Key Chapter 1 Addition and Subtraction within 1,000 Extra Practice makes you familiar with a variety of topics in it. HMH Go Math Grade 3 Solution Key Chapter 1 Addition and Subtraction within 1,000 helps you learn problems from basic to advanced level. Practice using the Grade 3 Go Math … Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":8946,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[2],"tags":[],"jetpack_featured_media_url":"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/09\/go-math-grade-3-chapter-1-addition-and-subtraction-within-1-000-extra-practice-answer-key.jpeg","_links":{"self":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/1228"}],"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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/comments?post=1228"}],"version-history":[{"count":1,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/1228\/revisions"}],"predecessor-version":[{"id":92833,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/1228\/revisions\/92833"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/media\/8946"}],"wp:attachment":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/media?parent=1228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/categories?post=1228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/tags?post=1228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nIf you are adding 5 and 7 together the commutative property of addition says that you will get the same answer whether you are adding 5 + 7 or 7 + 5.
\n7 + 5 = 12<\/p>\n
\n4 + 9 = __<\/p>\n
\nThat means you will get the same answer is you add 4 + 9 or 9 + 4.
\n9 + 4 = 13<\/p>\n
\n0 + 5 = __<\/p>\n
\nYou will get the same answer if you add 0 + 5\u00a0 or 5 + 0.
\n5 + 0 = 5<\/p>\nLesson 1.2 – Page No. 27000<\/h3>\n
\nQuestion 4:
\n622
\nThe nearest ten: __
\nThe nearest hundred: __<\/p>\n
\nThe nearest ten is 620
\nThe nearest hundred is 600<\/p>\n
\n307
\nThe nearest ten: __
\nThe nearest hundred: __<\/p>\n
\nThe nearest ten is 310
\nThe nearest hundred is 300<\/p>\n
\n867
\nThe nearest ten: __
\nThe nearest hundred: __<\/p>\n
\nThe nearest hundred is 900<\/p>\nLesson 1.3 – Page No. 27000<\/h3>\n
\nQuestion 7:
\n24
\n+ 82
\n<\/span>Estimate:
\n__ + __ = __<\/p>\n
\nAnd the round figure of 82 is 80.
\n25 + 80 = 105<\/p>\n
\n112
\n+ 279
\n<\/span>Estimate:
\n__ + __ = __<\/p>\n
\n110 + 280 = 390<\/p>\n
\n583
\n+ 169<\/span>
\nEstimate:
\n__ + __ = __<\/p>\n
\n600 + 170 = 770<\/p>\nLesson 1.4 – Page No. 27000<\/h3>\n
\nQuestion 10:
\n71 + 99 = __<\/p>\n
\nFirst, add one’s place and then add tens place
\n1 + 9 = 10 and
\n70 + 90 = 160
\n160 + 10 = 170<\/p>\n
\n38 + 58 = __<\/p>\n
\nFirst add ones place i.e., 8 + 8 = 16
\nNow add tens place 30 + 50 = 80
\n80 + 16 = 96
\n38 + 58 = 96<\/p>\n
\n307 + 418 = __<\/p>\n
\nAdd ones place 7 + 8 = 15. 1 will be carried to tens place
\nNow Add tens place 10 + 10 = 20
\nNow add hundereds place = 400 + 300 = 700
\n700 + 20 + 5 = 725<\/p>\nLesson 1.5 – Page No. 27000<\/h3>\n
\nQuestion 13:
\n13 + 47 + 21 + 79 = __<\/p>\n
\nStep 1:
\nFirst line up the numbers<\/p>\n
\n47
\n21
\n+ 79<\/span><\/p>\n
\nNow add all ones place
\n3 + 7 + 1 + 9 = 20
\n2 will be carries to tens place<\/p>\n
\nNow add tens place
\n10 + 40 + 20 + 70 = 140
\n140 + 20 = 160<\/p>\n
\n55 + 18 + 15 + 43 = __<\/p>\n
\nFirst line up the numbers<\/p>\n
\nNow add all ones place
\n5 + 5 + 3 + 8 = 21
\n2 will be carried to tens place<\/p>\n
\nNow add tens place
\n50 + 10 + 10 + 40 = 110
\n110 + 21 = 131<\/p>\nLessons 1.6\u20131.7 – Page No. 28000<\/h3>\n
\nQuestion 1:
\nEstimate: __
\n325 + 389 = __<\/p>\n
\nThe sum of 325 + 389 = 714
\nThe nearest hundred of 714 is 700. So, The estimated sum is 700.<\/p>\n
\nEstimate: __
\n219 + 445 = __<\/p>\n
\nThe sum of 219 + 445 is 664
\nThe nearest hundred of 664 is 650. So, the estimated sum is 650.<\/p>\n
\nEstimate: __
\n437 + 146 = __<\/p>\n
\nThe addition of 437 + 146 is 583.
\nAnd the number nearest to the hundred is 600.
\nTherefore the estimated sum of 437 and 146 is 600.<\/p>\n
\nEstimate: __
\n308 + 593 = __<\/p>\n
\nThe sum of 308 + 593 is 901.
\nThe number rounded to 901 is 900.
\nThus the estimated sum is 900.<\/p>\nLesson 1.8 – Page No. 28000<\/h3>\n
\nQuestion 5:
\n82
\n– 44<\/span>
\nEstimate: __<\/p>\n
\nThe number nearer to 82 is 80. And the number nearer to 44 is 45.
\nThe difference of 80 and 45 is 35.
\nTherefore the estimated difference is 35.<\/p>\n
\n192
\n– 78<\/span>
\nEstimate: __<\/p>\n
\nThe number close to 192 is 190 and the number close to 78 is 80.
\nSo, the difference of 190 and 80 is 120.
\nThus the estimated difference is 120.<\/p>\n
\n618
\n– 369<\/span>
\nEstimate: __<\/p>\n
\nThe number closer to 618 is 620 and 369 is 370
\nThe difference of 620 and 370 is 250.
\nTherefore the estimated difference of 618 and 369 is 250.<\/p>\n
\nQuestion 8:
\n92 – 41 = __<\/p>\n
\nFirst subtract ones place 2 – 1 = 1
\nNow subtract tens place = 90 – 40 = 50
\nSo, the answer is 51.<\/p>\n
\n451 – 125 = __<\/p>\n
\nStep 1:<\/p>\n
\nAdd +6 to 125 = 131<\/p>\n
\nThat means 451 + 6 = 457
\nNow subtract 457 – 131 = 326<\/p>\n
\n703 – 359 = __<\/p>\n
\nAdd 1 to 359 = 360<\/p>\n
\nNow subtract 704 – 360 = 344<\/p>\nLessons 1.10\u20131.11 – Page No. 28000<\/h3>\n
\nQuestion 11:
\n622
\n– 354<\/span>
\nEstimate: __
\nDifference: __<\/p>\n
\nThe round figure of 622 is 700 and 354 is 400.
\nThe difference of 700 and 400 is 300.
\nThus the estimated difference is 300.
\nAnd the actual difference is 268.<\/p>\n
\n506
\n– 189<\/span>
\nEstimate: __
\nDifference: __<\/p>\n
\nThe number rounded to 506 is 500 and the number rounded to 189 is 200.
\nThe estimated difference between 500 and 200 is 300. And the actual difference of 506 and 189 is 317.<\/p>\n
\n763
\n– 295<\/span>
\nEstimate: __
\nDifference: __<\/p>\n
\nThe round figure of 763 is 800 and the rounded number of 295 is 300.
\nThe estimated difference between 800 and 300 is 500.<\/p>\n
\n848
\n– 209<\/span>
\nEstimate: __
\nDifference: __<\/p>\n
\nThe estimated difference is 800 and 200 is 600.
\nAnd the actual difference is 848 and 209 is 639<\/p>\nLesson 1.12 – Page No. 28000<\/h3>\n
\nSara read 81 pages in her book. Colin read 64 pages in his book. How many more pages did Sara read than Colin?
\n____ Pages<\/p>\n
\nColin read 64 pages in his book.
\nTo know how many more pages did Sara read than Colin.
\nSubtract 64 from 81 you get 17
\nSo, the answer is 17 pages.<\/p>\n
\n_____ Plants<\/p>\n
\nHe planted 15 fewer tomato plants.
\nSubtract the number of tomato plants from a number of pea plants
\n28 – 15 = 13 plants
\nNow add total number of pea and tomato plants = 28 + 13 = 41 plants
\nTherefore the total number of plants = 41<\/p>\n