## Engage NY Eureka Math 2nd Grade Module 2 Lesson 7 Answer Key

### Eureka Math Grade 2 Module 2 Lesson 7 Sprint Answer Key

A. Subtraction.

Question 1.

3 – 1 =

Answer:

3 – 1 = 2,

Explanation:

Subtracting 1 from 3 we will get 2 .

Question 2.

13 – 1 =

Answer:

13 – 1 = 12,

Explanation:

Subtracting 1 from 13 we will get 12 .

Question 3.

23 – 1 = 22

Answer:

23 – 1 = 22,

Explanation:

Subtracting 1 from 23 we will get 22 .

Question 4.

53 – 1 = 52

Answer:

53 – 1 = 52,

Explanation:

Subtracting 1 from 53 we will get 52 .

Question 5.

4 – 2 = 2

Answer:

4 – 2 = 2,

Explanation:

Subtracting 2 from 4 we will get 2 .

Question 6.

14 – 2 = 12

Answer:

14 – 2 = 12,

Explanation:

Subtracting 2 from 14 we will get 12 .

Question 7.

24 – 2 = 22,

Answer:

24 – 2 = 22,

Explanation:

Subtracting 2 from 24 we will get 22 .

Question 8.

64 – 2 = 62,

Answer:

64 – 2 = 62,

Explanation:

Subtracting 2 from 64 we will get 62.

Question 9.

4 – 3 =

Answer:

4 – 3 = 1,

Explanation:

Subtracting 3 from 4 we will get 1.

Question 10.

14 – 3 =

Answer:

14 – 3 = 11,

Explanation:

Subtracting 3 from 14 we will get 11.

Question 11.

24 – 3 =

Answer:

24 – 3 = 21,

Explanation:

Subtracting 3 from 24 we will get 21.

Question 12.

74 – 3 =

Answer:

74 – 3 = 71,

Explanation:

Subtracting 3 from 74 we will get 71.

Question 13.

6 – 4 =

Answer:

6 – 4 = 2,

Explanation:

Subtracting 4 from 6 we will get 2.

Question 14.

16 – 4 =

Answer:

16 – 4 = 12,

Explanation:

Subtracting 4 from 16 we will get 12.

Question 15.

26 – 4 =

Answer:

26 – 4 = 22,

Explanation:

Subtracting 4 from 26 we will get 22.

Question 16.

96 – 4 =

Answer:

96 – 4 = 92,

Explanation:

Subtracting 4 from 96 we will get 92.

Question 17.

7 – 5 =

Answer:

7 – 5 = 2,

Explanation:

Subtracting 5 from 7 we will get 2.

Question 18.

17 – 5 =

Answer:

17 – 5 = 12,

Explanation:

Subtracting 5 from 17 we will get 12.

Question 19.

27 – 5 =

Answer:

27 – 5 = 22,

Explanation:

Subtracting 5 from 27 we will get 22.

Question 20.

47 – 5 =

Answer:

47 – 5 = 42,

Explanation:

Subtracting 5 from 47 we will get 42.

Question 21.

43 – 3 =

Answer:

43 – 3 = 40,

Explanation:

Subtracting 3 from 43 we will get 40.

Question 22.

87 – 7 =

Answer:

87 – 7 = 80,

Explaination:

Subtracting 7 from 87 we will get 80.

Question 23.

8 – 7 =

Answer:

8 – 7 = 1,

Explanation:

Subtracting 7 from 8 we will get 1.

Question 24.

18 – 7 =

Answer:

18 – 7 = 11,

Explanation:

Subtracting 7 from 18 we will get 11.

Question 25.

58 – 7 =

Answer:

58 – 7 = 51,

Explanation:

Subtracting 7 from 58 we will get 51

Question 26.

62 – 2 =

Answer:

62 – 2 = 60,

Explanation:

Subtracting 2 from 62 we will get 60

Question 27.

9 – 8 =

Answer:

9 – 8 = 1,

Explanation:

Subtracting 8 from 9 we will get 1.

Question 28.

19 – 8 =

Answer:

19 – 8 = 11,

Explanation:

Subtracting 8 from 19 we will get 11.

Question 29.

29 – 8 =

Answer:

29 – 8 = 21,

Explanation:

Subtracting 8 from 29 we will get 21.

Question 30.

69 – 8 =

Answer:

69 – 8 = 61,

Explanation:

Subtracting 8 from 69 we will get 61.

Question 31.

7 – 3 =

Answer:

7 – 3 = 4,

Explanation:

Subtracting 3 from 7 we will get 4.

Question 32.

17 – 3 =

Answer:

17 – 3 = 14,

Explanation:

Subtracting 3 from 17 we will get 14.

Question 33.

77 – 3 =

Answer:

77 – 3 = 74,

Explanation:

Subtracting 3 from 77 we will get 74.

Question 34.

59 – 9 =

Answer:

59 – 9 = 50,

Explanation:

Subtracting 9 from 59 we will get 50.

Question 35.

9 – 7 =

Answer:

9 – 7 = 2,

Explanation:

Subtracting 7 from 9 we will get 2.

Question 36.

19 – 7 =

Answer:

19 – 7 = 12,

Explanation:

Subtracting 7 from 19 we will get 12.

Question 37.

89 – 7 =

Answer:

89 – 7 = 82,

Explanation:

Subtracting 7 from 89 we will get 82.

Question 38.

99 – 5 =

Answer:

99 – 5 = 94,

Explanation:

Subtracting 5 from 99 we will get 94.

Question 39.

78 – 6 =

Answer:

78 – 6 = 72,

Explanation:

Subtracting 6 from 78 we will get 72.

Question 40.

58 – 5 =

Answer:

58 – 5 = 53,

Explanation:

Subtracting 5 from 58 we will get 53.

Question 41.

39 – 7 =

Answer:

39 – 7 = 32,

Explanation:

Subtracting 7 from 39 we will get 32

Question 42.

28 – 6 =

Answer:

28 – 6 = 22,

Explanation:

Subtracting 6 from 28 we will get 22

Question 43.

49 – 4 =

Answer:

49 – 4 = 45,

Explanation:

Subtracting 4 from 49 we will get 45.

Question 44.

67 – 4 =

Answer:

67 – 4 = 63,

Explanation:

Subtracting 4 from 67 we will get 63.

B. Subtraction.

Question 1.

2 – 1 = 1

Answer:

2 – 1 = 1,

Explanation:

Subtracting 1 from 2 we will get 1.

Question 2.

12 – 1 = 11

Answer:

12 – 1 = 11,

Explanation:

Subtracting 1 from 12 we will get 11.

Question 3.

22 – 1 =

Answer:

22 – 1 = 21,

Explanation:

Subtracting 1 from 22 we will get 21.

Question 4.

52 – 1 = 51

Answer:

52 – 1 = 51,

Explanation:

Subtracting 1 from 52 we will get 51.

Question 5.

5 – 2 = 3

Answer:

5 – 2 = 3,

Explanation:

Subtracting 2 from 5 we will get 3.

Question 6.

15 – 2 = 13

Answer:

15 – 2 = 13,

Explanation:

Subtracting 2 from 15 we will get 13.

Question 7.

25 – 2 = 13

Answer:

25 – 2 = 23,

Explanation:

Subtracting 2 from 25 we will get 23.

Question 8.

65 – 2 = 63

Answer:

65 – 2 = 63,

Explanation:

Subtracting 2 from 65 we will get 63.

Question 9.

4 – 3 = 1

Answer:

4 – 3 = 1,

Explanation:

Subtracting 3 from 4 we will get 1.

Question 10.

14 – 3 = 11

Answer:

14 – 3 = 11,

Explanation:

Subtracting 3 from 14 we will get 11.

Question 11.

24 – 3 = 21

Answer:

24 – 3 = 21,

Explanation:

Subtracting 3 from 24 we will get 21.

Question 12.

84 – 3 = 81

Answer:

84 – 3 = 81,

Explanation:

Subtracting 3 from 84 we will get 81.

Question 13.

7 – 4 = 3

Answer:

7 – 4 = 3,

Explanation:

Subtracting 4 from 7 we will get 3.

Question 14.

17 – 4 = 13

Answer:

17 – 4 = 13,

Explanation:

Subtracting 4 from 17 we will get 13.

Question 15.

27 – 4 = 23

Answer:

27 – 4 = 23,

Explanation:

Subtracting 4 from 27 we will get 23.

Question 16.

97 – 4 = 93

Answer:

97 – 4 = 93,

Explanation:

Subtracting 4 from 97 we will get 93.

Question 17.

6 – 5 = 1

Answer:

6 – 5 = 1,

Explanation:

Subtracting 5 from 6 we will get 1.

Question 18.

16 – 5 = 11

Answer:

16 – 5 = 11,

Explanation:

Subtracting 5 from 16 we will get 11.

Question 19.

26 – 5 = 21

Answer:

26 – 5 = 21,

Explanation:

Subtracting 5 from 26 we will get 21.

Question 20.

46 – 5 = 41

Answer:

46 – 5 = 41,

Explanation:

Subtracting 5 from 46 we will get 41.

Question 21.

23 – 3 = 20

Answer:

23 – 3 = 20,

Explanation:

Subtracting 3 from 23 we will get 20.

Question 22.

67 – 7 = 60

Answer:

67 – 7 = 60,

Explanation:

Subtracting 7 from 67 we will get 60.

Question 23.

8 – 7 = 1

Answer:

8 – 7 = 1,

Explanation:

Subtracting 7 from 8 we will get 1.

Question 24.

18 – 7 = 11

Answer:

18 – 7 = 11,

Explanation:

Subtracting 18 from 7 we will get 11.

Question 25.

68 – 7 = 61

Answer:

68 – 7 = 61,

Explanation:

Subtracting 7 from 68 we will get 61.

Question 26.

32 – 2 = 30

Answer:

32 – 2 = 30,

Explanation:

Subtracting 2 from 32 we will get 30.

Question 27.

9 – 8 = 1

Answer:

9 – 8 = 1,

Explanation:

Subtracting 9 from 8 we will get 1.

Question 28.

19 – 8 = 11

Answer:

19 – 8 = 11,

Explanation:

Subtracting 19 from 8 we will get 11.

Question 29.

29 – 8 = 21

Answer:

29 – 8 = 21,

Explanation:

Subtracting 8 from 29 we will get 21.

Question 30.

79 – 8 =

Answer:

79 – 8 = 71,

Explanation:

Subtracting 8 from 79 we will get 71.

Question 31.

8 – 4 = 4

Answer:

8 – 4 = 4,

Explanation:

Subtracting 4 from 8 we will get 4.

Question 32.

18 – 4 = 14

Answer:

18 – 4 = 14,

Explanation:

Subtracting 4 from 18 we will get 14.

Question 33.

78 – 4 = 74

Answer:

78 – 4 = 74,

Explanation:

Subtracting 4 from 78 we will get 74.

Question 34.

89 – 9 = 80

Answer:

89 – 9 = 80,

Explanation:

Subtracting 9 from 89 we will get 80.

Question 35.

9 – 7 =

Answer:

9 – 7 = 2,

Explanation:

Subtracting 7 from 9 we will get 2.

Question 36.

19 – 7 = 12

Answer:

19 – 7 = 12,

Explanation:

Subtracting 7 from 19 we will get 12.

Question 37.

79 – 7 = 72

Answer:

79 – 7 = 72,

Explanation:

Subtracting 7 from 79 we will get 72.

Question 38.

89 – 5 = 84

Answer:

89 – 5 = 84,

Explanation:

Subtracting 5 from 89 we will get 84.

Question 39.

68 – 6 = 62

Answer:

68 – 6 = 62,

Explanation:

Subtracting 6 from 68 we will get 62.

Question 40.

48 – 5 = 43

Answer:

48 – 5 = 43,

Explanation:

Subtracting 5 from 48 we will get 43.

Question 41.

29 – 7 = 22

Answer:

29 – 7 = 22,

Explanation:

Subtracting 7 from 29 we will get 22.

Question 42.

38 – 6 = 32

Answer:

38 – 6 = 32,

Explanation:

Subtracting 6 from 32 we will get 32.

Question 43.

59 – 4 = 55

Answer:

59 – 4 = 55,

Explanation:

Subtracting 4 from 59 we will get 55.

Question 44.

77 – 4 = 73

Answer:

77 – 4 = 73,

Explanation:

Subtracting 4 from 77 we will get 73.

### Eureka Math Grade 2 Module 2 Lesson 7 Problem Set Answer Key

Measure each set of lines with one small paper clip,

using mark and move forward. Measure each set of lines

in centimeters using a ruler.

Question 1.

Line A ____________________

Line B ____________________

a. Line A

___3__ paper clips ___9__ cm

Answer:

3 paper clips, 9 cm,

Explanation:

Line A has 3 paper clips and measures 9 cm.

b. Line B

__2___ paper clips __6_ cm

Answer:

2 paper clips, 6 cm,

Explanation:

Line B has 2 paper clips and measures 6 cm.

c. Line B is about __1___ paper clips shorter than Line A.

Answer:

Line B is about 1 paper clips shorter than Line A,

Explanation:

As Line A is 3 paper clips, Line B is 2 paper clips,

So Line B is about 3 – 2 = 1 paper clips shorter than Line A.

d. Line A is about __3__ cm longer than Line B.

Answer:

Line A is about 3 cm longer than Line B,

Explanation:

As Line A is 9 cm and Line B is 6 cm,

So Line A is about 9- 6 = 3 cm longer than Line B.

Question 2.

____________________ Line L

______________ Line M

a. Line L

__3___ paper clips __9___ cm

Answer:

3 paper clips, 9 cm,

Explanation:

Line L has 3 paper clips and measures 9 cm.

b. Line M

__1__ paper clips __3___ cm

Answer:

1 paper clips, 3 cm,

Explanation:

Line M has 1 paper clip and measures 3 cm.

c. Line L is about __2___ paper clips longer than Line M.

Answer:

Line L is about 2 paper clips longer than Line M,

Explanation:

As Line L is 3 paper clips and Line M is 1 paper clips,

Line L is about 3 – 1 = 2 paper clips longer than Line M.

d. Line M doubled is about __3___ cm shorter than Line L.

Answer:

Line M doubled is about 3 cm shorter than Line L,

Explanation:

As Line M is 3 cm and Line L is 9 cm and

Line M is doubled so it is 6 cm now

Line M doubled is about 9 – 6 = 3 cm shorter than Line L.

Question 3.

Draw a line that is 6 cm long and another line below it that is 15 cm long.

Label the 6 cm line C and the 15 cm line D.

Explanation:

Drawn a line that is 6 cm long and another line below

it that is 15 cm long. Labeled the 6 cm line C and

the 15 cm line D as shown above.

a. Line C Line D

__2___ paper clips ___5__ paper clips

Answer:

Line C is 2 paper clips,

Line D is 5 paper clips,

Explanation:

As shown Line C is 2 paper clips and

Line D is 5 paper clips.

b. Line D is about __9___ cm longer than Line C.

Answer:

Line D is about 9 cm longer than Line C,

Explanation:

As Line C is 6 cm and Line D is 15 cm,

So Line D is about 15 – 6 = 9 cm longer than Line C.

c. Line C is about __3___ paper clips shorter than Line D.

Answer:

Line C is about 3 paper clips shorter than Line D,

Explanation:

As Line C is 2 paper clips and Line D is 5 paper clips,

So Line C is about 3 paper clips shorter than Line D.

d. Lines C and D together are about __7__ paper clips long.

Answer:

Lines C and D together are about 7 paper clips long,

Explanation:

As Line C is 2 paper clips and Line D is 5 paper clips,

Lines C and D together are about 2 + 5 = 7 paper clips long.

e. Lines C and D together are about __21___ centimeters long.

Answer:

Lines C and D together are about 21 centimeters long,

Explanation:

As Line C is 6 cm and Line D is 15 cm,

So Lines C and D together are about 21 centimeters long.

Question 4.

Christina measured Line F with quarters and Line G with pennies.

Line F is about 6 quarters long. Line G is about 8 pennies long. Christina said Line G is longer because 8 is a bigger number than 6.

Explain why Christina is incorrect.

______________________________________________________________

______________________________________________________________

Answer:

Christiana is wrong,

Explanation:

Christiana is wrong because even though line f is only 6

quaters long size of quater is bigger than pennies.

So Christiana is wrong.

### Eureka Math Grade 2 Module 2 Lesson 7 Exit Ticket Answer Key

Measure the lines with small paper clips and then with a

centimeter ruler. Then, answer the questions below.

Line 1 ______________________________

Line 2 ______________________________

Line 3 ______________________________

a. Line 1

___5__ paper clips __15___ cm

Answer:

Line 1 is 5 paper clips 15 cm,

Explanation:

As shown in the picture Line 1 is

5 paper clips 15 cm long.

b. Line 2

__3__ paper clips __9___ cm

Answer:

Line 2 is 3 paper clips 9 cm,

Explanation:

As shown in the picture Line 2 is

3 paper clips 9 cm long.

c. Line 3

__4__ paper clips __12___ cm

Answer:

Line 3 is 4 paper clips 12 cm,

Explanation:

As shown in the picture Line 3 is

4 paper clips 12 cm long.

Explain why each measurement required more

centimeters than paper clips.

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

Answer:

Paper clips are already 3 cm long,

Explanation:

Each measurement requires more

centimeters than paper clips because

paper clips are already 3 cm long.

### Eureka Math Grade 2 Module 2 Lesson 7 Homework Answer Key

Question 1.

_________________________ Line Z

a. Line Z

___4__ paper clips __12___ cm

Answer:

Line Z is 4 paper clips 12 cm,

Explanation:

As shown above Line Z is 4 paper clips and

12 cm long.

b. Line Z doubled would measure about __8__ paper clips or

about __24___ cm long.

Answer:

Line Z doubled would measure about 8 paper clips or

about 24 cm long,

Explanation:

If Line Z is doubled then it would measure about 4 + 4 =

8 paper clips and about 12 + 12 = 24 cm long.

Question 2.

_________________________ Line A

_______________ Line B

a. Line A

__5___ paper clips __15___ cm

Answer:

Line A is 5 paper clips, 15 cm,

Explanation:

As shown above Line A has 5 paper clips and 15 cm long.

b. Line B

__3___ paper clips __9___ cm

Answer:

Line B is 3 paper clips, 9 cm,

Explanation:

As shown above Line B has 3 paper clips and

9 cm long.

c. Line A is about ___2__ paper clips longer than Line B.

Answer:

Line A is about 2 paper clips longer than Line B,

Explanation:

Line A is 5 paper clips and Line B is 3 paper clips,

Line A is about 5 – 3 = 2 paper clips longer than Line B.

d. Line B doubled is about __3___ cm shorter than Line A.

Answer:

Line B doubled is about 3 cm shorter than Line A,

Explanation:

As Line A is 15 cm and Line B is 9 cm,

Line B doubled is about 18 – 15 = 3 cm shorter than Line A.

Question 3.

Draw a line that is 9 cm long and another line below it that is 12 cm long.

Label the 9 cm line F and the 12 cm line G.

Explanation:

Drawn a line that is 9 cm long and another line

below it that is 12 cm long.

Labeled the 9 cm line F and the 12 cm line G as shown above.

a. Line F Line G

__3__ paper clips __4___ paper clips

Answer:

Line F is 3 paper clips and Line G is 4 paper clips,

Explanation:

As shown above Line F is 3 paper clips and Line G is 4 paper clips.

b. Line G is about __3___ cm longer than Line F.

Answer:

Line G is about 3 cm longer than Line F,

Explanation:

As Line F is 9 cm and Line G is 12 cm,

So Line G is about 12 – 9 = 3 cm longer than Line F.

c. Line F is about __1___ paper clips shorter than Line G.

Answer:

Line F is about 1 paper clips shorter than Line G,

Explanation:

As Line F is 3 paper clips and Line G is 4 paper clips,

So Line F is about 4 – 3 = 1 paper clips shorter than Line G.

d. Lines F and G are about __7___ paper clips long.

Answer:

Lines F and G are about 7 paper clips long,

Explanation:

As Line F is 3 paper clips and Line G is 4 paper clips,

Lines F and G are about 3 + 4 = 7 paper clips long.

e. Lines F and G are about __21___ centimeters long.

Answer:

Lines F and G are about 21 centimeters long,

Explanation:

As Line F is 9 cm and Line G is 12 cm,

Lines F and G are about 9 + 12 = 21 centimeters long.

Question 4.

Jordan measured the length of a line with large paper clips.

His friend measured the length of the same line with small paper clips.

a. About how many paper clips did Jordan use?

__4___ large paper clips

Answer:

About 4 larger paper clips did Jordan used,

Explanation:

As shown in the picture if we see there are about

4 larger paper clips did Jordan used.

b. About how many small paper clips did his friend use?

__6___ small paper clips

Answer:

About 6 small paper clips did his friend used,

Explanation:

As shown in the picture if we see there are about

6 small paper clips did Jordan’s friend used.

c. Why did Jordan’s friend need more paper clips to

measure the same line as Jordan?

________________________________________________________

________________________________________________________

Answer:

Jordan’s friend need more paper clips due to smaller size,

Explanation:

Jordan’s friend need more paper clips to

measure the same line as Jordan because

Jordan’s friend has used smaller clips than Jordan

thats why Jordan’s freind need more clips and

Jordan has used larger clips to measure the same.