## Engage NY Eureka Math 1st Grade Module 4 Lesson 8 Answer Key

### Eureka Math Grade 1 Module 4 Lesson 8 Core Subtraction Fluency Review Answer Key

Core Subtraction Fluency Review

Question 1.

8 – 0 = _______

Answer: 8

Given two numbers are 8 and 0

By removing zero from 8 we get 8

8-0=8

Question 2.

8 â€“ 1 = _______

Answer: 7

Given two numbers are 8 and 1

By removing 1 from 8 we get 7

8-1=7

Question 3.

7 – 7 = _______

Answer: 0

Given two numbers are 7 and 7

By removing 7 from 7 we get 0

7-7=0

Question 4.

3 – 3 = _______

Answer: 0

Given two numbers are 3 and 3

By removing 3 from 3 we get 3

3-3=0

Question 5.

3 – 2 = _______

Answer: 1

Given two numbers are 3 and 2

By removing 2 from 3 we get 1

3-2=1

Question 6.

4 – 2 = _______

Answer: 2

Given two numbers are 4 and 2

By removing 2 from 4 we get 2

4-2=2

Question 7.

5 – 2 = _______

Answer: 3

Given two numbers are 5 and 2

By removing 2 from 5 we get 3

5-2=3

Question 8.

5 – 3 = _______

Answer: 2

Given two numbers are 5 and 3

By removing 3 from 5 we get 2

5-3=2

Question 9.

9 – 2 = _______

Answer: 7

Given two numbers are 9 and 2

By removing 2 from 9 we get 7

9-2=7

Question 10.

8 – 2 = _______

Answer: 6

Given two numbers are 8 and 2

By removing 2 from 8 we get 6

8-2=6

Question 11.

7 – 2 = _______

Answer: 5

Given two numbers are 7 and 2

By removing 2 from 7 we get 5

7-2=5

Question 12.

4 – 4 = _______

Answer: 0

Given two numbers are 4 and 4

By removing 4 from 4 we get 0

4-4=0

Question 13.

4 – 3 = _______

Answer: 1

Given two numbers are 4 and 3

By removing 3 from 4 we get 1

4-3=1

Question 14.

5 – 4 = _______

Answer: 1

Given two numbers are 5 and 4

By removing 4 from 5 we get 1

5-4=1

Question 15.

8 – 3 = _______

Answer: 5

Given two numbers are 8 and 3

By removing 3 from 8 we get 5

8-3=5

Question 16.

9 – 3 = _______

Answer:6

Given two numbers are 9 and 3

By removing 3 from 9 we get 6

9-3=6

Question 17.

10 – 3 = _______

Answer: 7

Given two numbers are 10 and 3

By removing 3 from 10 we get 7

10-3=3

Question 18.

10 – 4 = _______

Answer: 6

Given two numbers are 10 and 4

By removing 4 from 10 we get 6

10-4=6

Question 19.

10 – 2 = _______

Answer: 8

Given two numbers are 2 and 10

By removing 2 from 10 we get 8

10-2=8

Question 20.

10 â€“ 8 = _______

Answer: 2

Given two numbers are 8 and 10

By removing 8 from 10 we get 2

10-8=2

Question 21.

10 – 7 = _______

Answer: 3

Given two numbers are 10 and 7

By removing 7 from 10 we get 3

10-7=3

Question 22.

10 – 6 = _______

Answer: 4

Given two numbers are 10 and 6

By removing 6 from 10 we get 4

10-6=4

Question 23.

6 – 6 = _______

Answer: 0

Given two numbers are 6 and 6

By removing 6 from 6 we get 0

6-6=0

Question 24.

7 – 7 = _______

Answer: 0

Given two numbers are 7 and 7

By removing 7 from 7 we get 7

7-7=0

Question 25.

7 – 6 = _______

Answer: 1

Given two numbers are 7 and 6

By removing 6 from 7 we get 0

7-6=0

Question 26.

8 – 8 = _______

Answer: 0

Given two numbers are 8 and 8

By removing 8 from 8 we get 0

8-8=0

Question 27.

8 – 7 = _______

Answer: 1

Given two numbers are 8 and 7

By removing 7 from 8 we get 1

8-7=1

Question 28.

9 – 9 = _______

Answer: 0

Given two numbers are 9 and 9

By removing 9 from 9 we get 0

9-9=0

Question 29.

9 – 8 = _______

Answer: 1

Given two numbers are 8 and 9

By removing 8 from 9 we get 1

9-8=1

Question 30.

10 – 9 = _______

Answer: 1

Given two numbers are 10 and 9

By removing 9 from 10 we get 1

10-9=1

Question 31.

5 – 5 = _______

Answer:0

Given two numbers are 5 and 5

By removing 5 from 5 we get 0

5-5=0

Question 32.

6 – 5 = _______

Answer:1

Given two numbers are 6 and 5

By removing 5 from 6 we get 1

6-5=1

Question 33.

7 – 5 = _______

Answer: 2

Given two numbers are 7 and 5

By removing 5 from 7 we get 2

7-5=2

Question 34.

8 – 5 = _______

Answer: 3

Given two numbers are 8 and 5

By removing 5 from 8 we get 3

8-5=3

Question 35.

8 – 4 = _______

Answer: 4

Given two numbers are 8 and 4

By removing 4 from 8 we get 4

8-4=4

Question 36.

10 – 5 = _______

Answer: 5

Given two numbers are 10 and 5

By removing 5 from 10 we get 5

10+5=5

Question 37.

9 – 5 = _______

Answer: 4

Given two numbers are 9 and 5

By removing 5 from 9 we get 4

9-5=4

Question 38.

9 – 4 = _______

Answer: 5

Given two numbers are 9 and 4

By removing 4 from 9 we get 5

9-4=5

Question 39.

6 – 3 = _______

Answer: 3

Given two numbers are 6 and 3

By removing 3 from 6 we get 3

6-3=3

Question 40.

6 – 4 = _______

Answer: 2

Given two numbers are 6 and 4

By removing 4 from 6 we get 2

6-4=2

Question 41.

7 – 3 = _______

Answer: 4

Given two numbers are 7 and 3

By removing 3 from 7 we get 4

7-3=4

Question 42.

7 – 4 = _______

Answer: 3

Given two numbers are 7 and 4

By removing 4 from 7 we get 3

7-4=3

Question 43.

8 – 6 = _______

Answer: 2

Given two numbers are 8 and 6

By removing 6 from 8 we get 2

8-6=2

Question 44.

9 – 6 = _______

Answer: 3

Given two numbers are 9 and 6

By removing 6 from 9 we get 3

9-6=3

Question 45.

9 – 7 = _______

Answer: 2

Given two numbers are 9 and 7

By removing 7 from 9 we get 2

9-7=2

### Eureka Math Grade 1 Module 4 Lesson 8 Problem Set Answer Key

Question 1.

Draw quick tens and ones to show each number. Label the first drawing as less than (L), greater than (G), or equal to (E) the second. Write a phrase from the word bank to compare the numbers.

a.

20 _____________________ 18

Answer: 20 is greater than 18

First image has 2 tens and second image has 1 ten and 8 ones

That is 20 and 18

So 20>18

b.

2 tensÂ Â Â Â Â Â Â Â Â 3 tens

2 tens _____________________ 3 tens

Answer:2tens is less than 3 tens

First image has 2 tens and second image has 3 ten

3 tens is more than 2 tens

That is 20 and 30

So 2 tens < 3 tens

c.

24Â Â Â Â Â Â Â Â Â Â Â Â 15

24 _____________________ 15

Answer:24 is greater than 15

First image has 2 tens4 ones and second image has 1 ten and 5 ones

That is 24 and 15

So 24>15

d.

26Â Â Â Â Â Â Â Â Â Â Â Â 32

26 _____________________ 32

Answer:26 is less than 32

First image has 2 tens 6 ones and second image has 3 ten and 2 ones

That is 26 and 32

So 26<32

Question 2.

Write a phrase from the word bank to compare the numbers.

36 _____________________ 3 tens 6 ones

1 ten 8 ones _____________________ 3 tens 1 one

38 _____________________ 26

1 ten 7 ones _____________________ 27

15 _____________________ 1 ten 2 ones

30 _____________________ 28

29 _____________________ 32

Answer:

36 is equal to 3 tens and 6 ones

1 ten 8 ones is less than 3 tens 1 one

38 is greater than 26

1 ten and 7 ones is less than 27

15 is greater than 1 ten and 2 ones

30 is greater than 28

29 is less than 32

Question 3.

Put the following numbers in order from least to greatest. Cross off each number after it has been used.

Answer:

Question 4.

Put the following numbers in order from greatest to least. Cross off each number after it has been used.

Answer:

Question 5.

Use the digits 8, 3, 2, and 7 to make 4 different two-digit numbers less than 40. Write them in order from greatest to least.

Answer:

### Eureka Math Grade 1 Module 4 Lesson 8 Exit Ticket Answer Key

Question 1.

Write the numbers in order from greatest to least.

Answer:

Question 2.

Complete the sentence frames using the phrases from the word bank to compare the two numbers.

Word Bank

is greater than

is less than

is equal to

a. 17 __________________________ 24

b. 23 __________________________ 2 tens 3 ones

c. 29 __________________________ 20

Answer:

a. 17 is less than 24

b. 23 is equal to 2 tens 3 ones

c. 29 is greater than 20

### Eureka Math Grade 1 Module 4 Lesson 8 Homework Answer Key

Question 1.

Draw the numbers using quick tens and circles. Use the phrases from the word bank to complete the sentence frames to compare the numbers. The first one has been done for you.

Word Bank

is greater than

is less than

is equal to

a.

Answer: 20 is less than 30

First image has 2 tensÂ and second image has 3 ten

That is 20 and 30

So 20<30

b. 14Â Â Â Â Â Â Â Â 22

14 __________________ 22

Answer:14 is less than 22

First image has 1 ten 4 ones and second image has 2 ten and 2 ones

That is 14 and 22

So 14<22

c. 15Â Â Â Â Â Â Â Â 1 ten 5 ones

15 ________________ 1 ten 5 ones

Answer:15 is less than 15

First image has 1 ten 5 ones and second image has 1 ten and 5 ones

That is15 and 15

So 15=15

d. 39Â Â Â Â Â Â Â Â Â 29

39 _____________________ 29

Answer:39 is greater than 29

First image has 3 tens 9 ones and second image has 2 ten and 9 ones

That is 39 and 29

So 39>29

e. 31Â Â Â Â Â Â Â Â Â 13

31 _____________________ 13

Answer:31 is greater than 13

First image has 3 tens 1 oneand second image has 1 ten and 3 ones

That is 31 and 13

So 31>13

f. 23Â Â Â Â Â Â Â Â Â 33

23 _____________________ 33

Answer:23 is less than 33

First image has 2 tens 3 ones and second image has 3 ten and 3 ones

That is 23 and 33

So 23<33

Question 2.

Circle the numbers that are greater than 28.

32Â Â Â Â Â Â Â Â Â Â Â Â 29Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2 tens 8 onesÂ Â Â Â Â Â Â Â Â 4 tensÂ Â Â Â Â Â Â Â Â Â Â Â 18

Answer:

Question 3.

Circle the numbers that are less than 31.

29Â Â Â Â Â Â Â Â 3 tens 6 onesÂ Â Â Â Â Â Â Â Â Â Â 3 tensÂ Â Â Â Â Â Â Â Â 13Â Â Â Â Â Â Â Â Â 3 tens 9 ones

Answer:

Question 4.

Write the numbers in order from least to greatest.

Answer:

Where would the number 27 go in this order? Use words or rewrite the numbers to explain.

Answer: 27 is greater than 23 and less than 30

So 27 willgo between 29 and 23

32,30,29,27,23

Question 5.

Write the numbers in order from greatest to least.

Where would the number 23 go in this order? Use words or rewrite the numbers to explain.

Answer:

Question 6.

Use the digits 9, 4, 3, and 2 to make 4 different two-digit numbers less than 40. Write them in order from least to greatest.

Answer: