Engage NY Eureka Math 4th Grade Module 1 Lesson 8 Answer Key
Eureka Math Grade 4 Module 1 Lesson 8 Sprint Answer Key
A
 Find the Midpoint
 
 
Question 1.
 0 10
 Answer:
 0  5 10
Explanation:
 given
 The starting number 0
 The ending number 10
 The half way point of 0 and 10 is 5.
 So, the mid point of 0 and 10 is 5.
Question 2.
 0 100
 Answer:
 0  50 100
Explanation:
 given
 The starting number 0
 The ending number 100
 The half way point of 0 and 100 is 50.
 So, the mid point of 0 and 100 is 50.
Question 3.
 0 1000
 Answer:
 0 500 1000
Explanation:
 given
 The starting number 0
 The ending number 1000
 The half way point of 0 and 1000 is 500.
 So, the mid point of 0 and 1000 is 500.
Question 4.
 10 20
 Answer:
 10  15  20
Explanation:
 given
 The starting number 10
 The ending number 20
 The half way point of 10 and 20 is 15.
Question 5.
 100 200
 Answer:
 100  150 200
Explanation:
 given
 The starting number 100
 The ending number 200
 The half way point of 100 and 200 is 150.
Question 6.
 1000 2000
 Answer:
 1000  1500 2000
Explanation:
 given
 The starting number 1000
 The ending number 2000
 The half way point of 1000 and 2000 is 1500.
Question 7.
 30 40
 Answer:
 30  35  40
Explanation:
 given
 The starting number 30
 The ending number 40
 The half way point of 30 and 40 is 35.
Question 8.
 300 400
 Answer:
 300  350  400
Explanation:
 given
 The starting number 300
 The ending number 400
 The half way point of 300 and 400 is 350..
Question 9.
 400 500
 Answer:
 400  450  500
Explanation:
 given
 The starting number 400
 The ending number 500
 The half way point of 400 and 500 is 450.
Question 10.
 20 30
 Answer:
 20  25  30
Explanation:
 given
 The starting number 20
 The ending number 30
 The half way point of 20 and 30 is 25.
Question 11.
 30 40
 Answer:
 30  35  40
Explanation:
 given
 The starting number 30
 The ending number 40
 The half way point of 30 and 40 is 35.
Question 12.
 40 50
 Answer:
 40  45 50
Explanation:
 given
 The starting number 40
 The ending number 50
 The half way point of 40 and 50 is 45.
Question 13.
 50 60
 Answer:
 50  55  60
Explanation:
 given
 The starting number 50
 The ending number 60
 The half way point of 50 and 60 is 55.
Question 14.
 500 600
 Answer:
 500  550 600
 Explanation:
 given
 The starting number 500
 The ending number 600
 The half way point of 500 and 600 is 550.
Question 15.
 5000 6000
 Answer:
 5000    5500  6000
 Explanation:
 given
 The starting number 5000
 The ending number 6000
 The half way point of 5000 and 6000 is 5500.
Question 16.
 200 300
 Answer:
 200  250  300
 Explanation:
 given
 The starting number 200
 The ending number 300
 The half way point of 200 and 300 is 250.
Question 17.
 300 400
 Answer:
 300  350 400
 Explanation:
 given
 The starting number 300
 The ending number 400
 The half way point of 300 and 400 is 350.
Question 18.
 700 800
 Answer:
 700 750  800
 Explanation:
 given
 The starting number 700
 The ending number 800
 The half way point of 700 and 800 is 750.
Question 19.
 5700 5800
 Answer:
 5700  5750  5800
Explanation:
 given
 The starting number 5700
 The ending number 5800
 The half way point of 5700 and 5800 is 5750.
Question 20.
 70 80
 Answer:
 70  75  80
 Explanation:
 given
 The starting number 70
 The ending number 80
 The half way point of 70 and 80 is 75.
 So, the mid point of 70 and 80 is 75.
Question 21.
 670 680
 Answer:
 670  675 680
Explanation:
 given
 The starting number 670
 The ending number 680
 The half way point of 670 and 680 is 675.
Question 22.
 6700 6800
 Answer:
 6700  6750 6800
Explanation:
 given
 The starting number 6700
 The ending number 6800
 The half way point of 6700 and 6800 is 6750.
Question 23.
 6000 7000
 Answer:
 6000   6500  7000
Explanation:
 given
 The starting number 6000
 The ending number 7000
 The half way point of 6000 and 7000 is 6500.
Question 24.
 600 700
 Answer:
 600   650  700
 Explanation:
 given
 The starting number 600
 The ending number 700
 The half way point of 600 and 700 is 650.
Question 25.
 60 70
 Answer:
 60  65  70
Explanation:
 given
 The starting number 60
 The ending number 70
 The half way point of 60 and 70 is 65.
Question 26.
 260 270
 Answer:
 260   265  270
Explanation:
 given
 The starting number 260
 The ending number 270
 The half way point of 260 and 270 is 265.
Question 27.
 9260 9270
 Answer:
 9260   9265  9270
Explanation:
 given
 The starting number 9260
 The ending number 9270
 The half way point of 9260 and 9270 is 9265.
Question 28.
 80 90
 Answer:
 80   85  90
Explanation:
 given
 The starting number 80
 The ending number 90
 The half way point of 80 and 90 is 85.
Question 29.
 90 100
 Answer:
 90   95  100
Explanation:
 given
 The starting number 90
 The ending number 100
 The half way point of 90 and 100 is 95.
Question 30.
 990 1000
 Answer:
 990   995 1000
Explanation:
 given
 The starting number 990
 The ending number 1000
 The half way point of 990 and 1000 is 995.
Question 31.
 9990 10,000
 Answer:
 9990   9995 10,000
Explanation:
 given
 The starting number 9990
 The ending number 10,000
 The half way point of 9990 and 10,000 is 9995.
Question 32.
 440 450
 Answer:
 440   445 450
Explanation:
 given
 The starting number 440
 The ending number 450
 The half way point of 440 and 450 is 445.
Question 33.
 8300 8400
 Answer:
 8300  8350 8400
Explanation:
 given
 The starting number 8300
 The ending number 8400
 The half way point of 8300 and 8400 is 8350.
Question 34.
 680 690
 Answer:
 680  685  690
Explanation:
 given
 The starting number 680
 The ending number 690
 The half way point of 680 and 690 is 685.
Question 35.
 9400 9500
 Answer:
 9400   9450  9500
Explanation:
 given
 The starting number 9400
 The ending number 9500
 The half way point of 9400 and 9500 is 9450.
Question 36.
 3900 4000
 Answer:
 3900   3950  4000
Explanation:
 given
 The starting number 3900
 The ending number  4000
 The half way point of 3900 and 4000 is 3950.
Question 37.
 2450 2460
 Answer:
 2450   2455  2460
Explanation:
 given
 The starting number 2450
 The ending number 2460
 The half way point of 2450 and 2460 is 2455.
Question 38.
 7080 7090
 Answer:
 7080  7085 7090
Explanation:
 given
 The starting number 7080
 The ending number 7090
 The half way point of 7080 and 7090 is 7085.
Question 39.
 3200 3210
 Answer:
 3200  3205  3210
Explanation:
 given
 The starting number 3200
 The ending number 3210
 The half way point of 3200 and 3210 is 3205.
Question 40.
 8630 8640
 Answer:
 8630  8635  8640
Explanation:
 given
 The starting number 8630
 The ending number 8640
 The half way point of 8630 and 8640 is 8635.
Question 41.
 8190 8200
 Answer:
 8190  8195  8200
Explanation:
 given
 The starting number 8190
 The ending number 8200
 The half way point of 8190 and 8200 is 8195.
Question 42.
 2510 2520
 Answer:
 2510    2515  2520
Explanation:
 given
 The starting number 2510
 The ending number 2520
 The half way point of 2510 and 2520 is 2515.
Question 43.
 4890 4900
 Answer:
 4890  4895  4900
Explanation:
 given
 The starting number 4890
 The ending number 4900
 The half way point of 4890 and 4900 is 4895.
Question 44.
 6660 6670
 Answer:
 6660  6665  6670
Explanation:
 given
 The starting number 6660
 The ending number 6670
 The half way point of 6660 and 6670 is 6665.
B
 Find the Midpoint
 
 
Question 1.
 10 20
 Answer:
 10  15  20
Explanation:
 given
 The starting number 10
 The ending number 20
 The half way point of 10 and 20 is 15.
Question 2.
 100 200
 Answer:
 100  150  200
Explanation:
 given
 The starting number 100
 The ending number 200
 The half way point of 100 and 200 is 150.
Question 3.
 1000 2000
 Answer:
 1000   1500  2000
Explanation:
 given
 The starting number 1000
 The ending number 2000
 The half way point of 1000 and 2000 is 1500.
Question 4.
 20 30
 Answer:
 20  25  30
Explanation:
 given
 The starting number 20
 The ending number 30
 The half way point of  20 and 30 is 25.
Question 5.
 200 300
 Answer:
 200  250  300
Explanation:
 given
 The starting number 200
 The ending number 300
 The half way point of 200 and 300 is 250.
Question 6.
 2000 3000
 Answer:
 2000  2500 3000
Explanation:
 given
 The starting number 2000
 The ending number 3000
 The half way point of 2000 and 3000 is 2500.
Question 7.
 40 50
 Answer:
 40  45 50
Explanation:
 given
 The starting number 40
 The ending number 50
 The half way point of 40 and 50 is 45.
Question 8.
 400 500
 Answer:
 400  450  500
Explanation:
 given
 The starting number 400
 The ending number 500
 The half way point of 400 and 500 is 450.
Question 9.
 500 600
 Answer:
 500  550  600
Explanation:
 given
 The starting number 500
 The ending number 600
 The half way point of 500 and 600 is 550.
Question 10.
 30 40
 Answer:
 30  35  40
Explanation:
 given
 The starting number 30
 The ending number 40
 The half way point of 30 and 40 is 35.
Question 11.
 40 50
 Answer:
 40  45  50
Explanation:
 given
 The starting number 40
 The ending number 50
 The half way point of 40 and 50 is 45.
Question 12.
 50 60
 Answer:
 50  55  60
Explanation:
 given
 The starting number 50
 The ending number 60
 The half way point of 50 and 60 is 55.
Question 13.
 60 70
 Answer:
 60  65  70
Explanation:
 given
 The starting number 60
 The ending number 70
 The half way point of 60 and 70 is 65.
Question 14.
 600 700
 Answer:
 600  650  700
Explanation:
 given
 The starting number 600
 The ending number 700
 The half way point of 600 and 700 is 650.
Question 15.
 6000 7000
 Answer:
 6000  6500 7000
Explanation:
 given
 The starting number 6000
 The ending number 7000
 The half way point of 6000 and 7000 is 6500.
Question 16.
 300 400
 Answer:
 300   350  400
Explanation:
 given
 The starting number 300
 The ending number 400
 The half way point of 300 and 400 is 350.
Question 17.
 400 500
 Answer:
 400  450  500
Explanation:
 given
 The starting number 400
 The ending number 500
 The half way point of 400 and 500 is 450.
Question 18.
 800 900
 Answer:
 800  850  900
Explanation:
 given
 The starting number 800
 The ending number 900
 The half way point of 800 and 900 is 850.
Question 19.
 5800 5900
 Answer:
 5800  5850 5900
Explanation:
 given
 The starting number 5800
 The ending number 5900
 The half way point of 5800 and 5900 is 5850.
Question 20.
 80 90
 Answer:
 80  85 90
Explanation:
 given
 The starting number 80
 The ending number 90
 The half way point of 80 and 90 is 85.
Question 21.
 680 690
 Answer:
 680  685 690
Explanation:
 given
 The starting number 680
 The ending number 690
 The half way point of 680 and 690 is 685.
Question 22.
 6800 6900
 Answer:
 6800  6850 6900
Explanation:
 given
 The starting number 6800
 The ending number 6900
 The half way point of 6800 and 6900 is 6850.
Question 23.
 7000 8000
 Answer:
 7000  7500 8000
Explanation:
 given
 The starting number 7000
 The ending number 8000
 The half way point of 7000 and 8000 is 7500.
Question 24.
 700 800
 Answer:
 700  750 800
Explanation:
 given
 The starting number 700
 The ending number 800
 The half way point of 700 and 800 is 750.
Question 25.
 70 80
 Answer:
 70  75 80
Explanation:
 given
 The starting number 70
 The ending number 80
 The half way point of 70 and 80 is 75..
Question 26.
 270 280
 Answer:
 270  275 280
Explanation:
 given
 The starting number 270
 The ending number 280
 The half way point of 270 and 280 is 275.
Question 27.
 9270 9280
 Answer:
 9270  9275  9280
Explanation:
 given
 The starting number 9270
 The ending number 9280
 The half way point of 9270 and 9280 is 9275.
Question 28.
 80 90
 Answer:
 80  85  90
Explanation:
 given
 The starting number 80
 The ending number 90
 The half way point of 80 and 90 is 85.
Question 29.
 90 100
 Answer:
 90  95 100
Explanation:
 given
 The starting number 90
 The ending number 100
 The half way point of 90 and 100 is 95.
Question 30.
 990 1000
 Answer:
 990  995 1000
Explanation:
 given
 The starting number 990
 The ending number 1000
 The half way point of 990 and 1000 is 995.
Question 31.
 9990 10,000
 Answer:
 9990  9995 10,000
Explanation:
 given
 The starting number 9990
 The ending number 10,000
 The half way point of 9990  and 10,000 is 9995.
Question 32.
 450 460
 Answer:
 450  455  460
Explanation:
 given
 The starting number 450
 The ending number 460
 The half way point of 450 and 460 is 455 .
Question 33.
 8400 8500
 Answer:
 8400  8450  8500
Explanation:
 given
 The starting number 8400
 The ending number 8500
 The half way point of 8400 and 8500 is 8450.
Question 34.
 580 590
 Answer:
 580  585  590
Explanation:
 given
 The starting number 580
 The ending number 590
 The half way point of 580 and 590 is 585.
Question 35.
 9500 9600
 Answer:
 9500  9550  9600
Explanation:
 given
 The starting number 9500
 The ending number 9600
 The half way point of 9500 and 9600 is 9550.
Question 36.
 2900 3000
 Answer:
 2900  2950 3000
Explanation:
 given
 The starting number 2900
 The ending number 3000
 The half way point of 2900 and 3000 is 2950.
Question 37.
 3450 3460
 Answer:
 3450  3455 3460
Explanation:
 given
 The starting number 3450
 The ending number 3460
 The half way point of 3450 and 3460 is 3455.
Question 38.
 6080 6090
 Answer:
 6080  6085 6090
Explanation:
 given
 The starting number 6080
 The ending number 6090
 The half way point of 6080 and 6090 is 6085 .
Question 39.
 4200 4210
 Answer:
 4200  4205 4210
Explanation:
 given
 The starting number 4200
 The ending number 4210
 The half way point of 4200  and 4210 is 4205.
Question 40.
 7630 7640
 Answer:
 7630  7635 7640
Explanation:
 given
 The starting number 7630
 The ending number 7640
 The half way point of 7630 and 7640 is 7635.
Question 41.
 7190 7200
 Answer:
 7190  7195  7200
Explanation:
 given
 The starting number 7190
 The ending number 7200
 The half way point of 7190 and 7200 is 75.
Question 42.
 3510 3520
 Answer:
 3510  3515  3520
Explanation:
 given
 The starting number 3510
 The ending number 3520
 The half way point of 3510 and 3520 is 3515.
Question 43.
 5890 5900
 Answer:
 5890  5895  5900
Explanation:
 given
 The starting number 5890
 The ending number 5900
 The half way point of 5890 and 5900 is 5895.
Question 44.
 7770 7780
 Answer:
 7770    7775   7780
 Explanation:
 given
 The starting number 7770
 The ending number 7780
 The half way point of 7770 and 7780 is 7775.
Eureka Math Grade 4 Module 1 Lesson 8 Problem Set Answer Key
Complete each statement by rounding the number to the given place value. Use the number line to show your work.
Question 1.
 a. 53,000 rounded to the nearest ten thousand is _______________.
 
 Answer:
 
 Explanation:
 Given 53,000
 50,000 is the starting number and 60,000 is the end number.
 The mid point of both is 55,000. Since the  number is less than the mid point the nearest ten thousand to 53,000 is 50,000
 b. 42,708 rounded to the nearest ten thousand is _______________.
 
 Answer:
 
 Explanation:
 Given 42,708
 The starting number of the number line 42,000
 The ending number of the number line is 43,000
 The mid point of both the numbers is 42,500 and the given number is 42,708 which is more than the mid point.So, the number is nearer to 43,000.
 c. 406,823 rounded to the nearest ten thousand is _______________.
 
 Answer:
 
 Explanation:
 Given 406,823
 The starting number of the number line 400,000
 The ending number of the number line is 410,000
 The mid point of both the numbers is 405,000 and the given number is 406,823 which is more than the mid point.So, the number is nearer to 410,000.
Question 2.
 a. 240,000 rounded to the nearest hundred thousand is _______________.
 
 Answer:
 
 Explanation:
 Given 240,000
 The starting number of the number line 200,000
 The ending number of the number line is 300,000
 The mid point of both the numbers is 250,000 and the given number is 240,000 which is less than the mid point.So, the number is nearer to 200,000.
 b. 449,019 rounded to the nearest hundred thousand is _______________.
 
 Answer:
 
 Explanation:
 Given 449,019
 The starting number of the number line is 400,000
 The ending number of the number line is 500,000
 The mid point of both the numbers is 450,000 and the given number is 449,019 which is less than the mid point.So, the number is nearest to 400,000.
 c. 964,103 rounded to the nearest hundred thousand is _______________.
 
 Answer:
 
Explanation:
 Given 964,103
 The starting number of the number line 900,000
 The ending number of the number line is 1,000,000
 The mid point of both the numbers is 950,000 and the given number is 964,103 which is more than the mid point.So, the number is nearer to 1,000,000.
 Question 3.
 975,462 songs were downloaded in one day. Round this number to the nearest hundred thousand to estimate how many songs were downloaded in one day. Use a number line to show your work.
 Answer:
 Given 975,462 songs
 Round this number to the nearest hundred thousand
 
Question 4.
 This number was rounded to the nearest ten thousand. List the possible digits that could go in the thousands place to make this statement correct. Use a number line to show your work.
 13_ ,644 ≈ 130,000
 Answer:
 13_ ,644 ≈ 130,000
 The possible digits could be 1 , 2 , 3 , 4
 
Question 5.
 Estimate the difference by rounding each number to the given place value.
 712,350 − 342,802
 a. Round to the nearest ten thousands.
 Answer:
 
 b. Round to the nearest hundred thousands.
 Answer:
 
Eureka Math Grade 4 Module 1 Lesson 8 Exit Ticket Answer Key
Question 1.
 Round to the nearest ten thousand. Use the number line to model your thinking.
 
 a. 35,124
 Answer:
 
 Explanation:
 Given 35,124
 The starting number of the number line 30,000
 The ending number of the number line is 40,000
 The mid point of both the numbers is 35,000 and the given number is 35,124 which is more than the mid point.So, the number is nearer to 40,000.
 
 b. 981,657
 Answer:
 
 Explanation:
 Given 981,657
 The starting number of the number line 980,000
 The ending number of the number line is 990,000
 The mid point of both the numbers is 985,000 and the given number is 981,657 which is less than the mid point.So, the number is nearer to 980,000.
Question 2.
 Round to the nearest hundred thousand. Use the number line to model your thinking.
 
 a. 89,678 ≈ ___________
 Answer:
 
 
 b. 999,765 ≈ ___________
 Answer:
 
Question 3.
 Estimate the sum by rounding each number to the nearest hundred thousand.
 257,098 + 548,765 ≈ ___________
 Answer:
 
Eureka Math Grade 4 Module 1 Lesson 8 Homework Answer Key
Complete each statement by rounding the number to the given place value. Use the number line to show your work.
Question 1.
 a. 67,000 rounded to the nearest ten thousand is _______________.
 
 Answer:
 
 b. 51,988 rounded to the nearest ten thousand is _______________.
 
 Answer:
 
 c. 105,159 rounded to the nearest ten thousand is _______________.
 
 Answer:
 
Question 2.
 a. 867,000 rounded to the nearest hundred thousand is _______________.
 
 Answer:
 
 b. 767,074 rounded to the nearest hundred thousand is _______________.
 
 Answer:
 
 c. 629,999 rounded to the nearest hundred thousand is _______________.
 
 Answer:
 
Question 3.
 491,852 people went to the water park in the month of July. Round this number to the nearest hundred thousand to estimate how many people went to the park. Use a number line to show your work.
 Answer:
 Number of people went to the water park in the month of July are = 491,852
 
 Approximately 500,000 people went to water park in the month of July.
Question 4.
 This number was rounded to the nearest hundred thousand. List the possible digits that could go in the ten thousands place to make this statement correct. Use a number line to show your work.
 1_9,644 ≈ 100,000
 Answer:
 1_9,644 ≈ 100,000
 The possible digits that could go in the ten thousand place to make the statement correct are 1, 2 , 3 , 4.
 
Question 5.
 Estimate the sum by rounding each number to the given place value.
 164,215 + 216,088
 a. Round to the nearest ten thousand.
 Answer:
 
 b. Round to the nearest hundred thousand.
 Answer:
 















































































































































































































































































































