## 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 =
3 – 1 = 2,

Explanation:
Subtracting 1 from 3 we will get 2 .

Question 2.
13 – 1 =
13 – 1 = 12,

Explanation:
Subtracting 1 from 13 we will get 12 .

Question 3.
23 – 1 = 22
23 – 1 = 22,

Explanation:
Subtracting 1 from 23 we will get 22 .

Question 4.
53 – 1 = 52
53 – 1 = 52,

Explanation:
Subtracting 1 from 53 we will get 52 .

Question 5.
4 – 2 = 2
4 – 2 = 2,

Explanation:
Subtracting 2 from 4 we will get 2 .

Question 6.
14 – 2 = 12
14 –  2 = 12,

Explanation:
Subtracting 2 from 14 we will get 12 .

Question 7.
24 – 2 = 22,
24 – 2 = 22,

Explanation:
Subtracting 2 from 24 we will get 22 .

Question 8.
64 – 2 = 62,
64 – 2 = 62,

Explanation:
Subtracting 2 from 64 we will get 62.

Question 9.
4 – 3 =
4 – 3 = 1,

Explanation:
Subtracting 3 from 4 we will get 1

Question 10.
14 – 3 =
14 – 3 = 11,

Explanation:
Subtracting 3 from 14 we will get 11.

Question 11.
24 – 3 =
24 – 3 = 21,

Explanation:
Subtracting 3 from 24 we will get 21.

Question 12.
74 – 3 =
74 – 3 = 71,

Explanation:
Subtracting 3 from 74 we will get 71.

Question 13.
6 – 4 =
6 – 4 = 2,

Explanation:
Subtracting 4 from 6 we will get 2.

Question 14.
16 – 4 =
16 – 4 = 12,

Explanation:
Subtracting 4 from 16 we will get 12.

Question 15.
26 – 4 =
26 – 4 = 22,

Explanation:
Subtracting 4 from 26 we will get 22.

Question 16.
96 – 4 =
96 – 4 = 92,

Explanation:
Subtracting 4 from 96 we will get 92.

Question 17.
7 – 5 =
7 – 5 = 2,

Explanation:
Subtracting 5 from 7 we will get 2.

Question 18.
17 – 5 =
17 – 5 = 12,

Explanation:
Subtracting 5 from 17 we will get 12.

Question 19.
27 – 5 =
27 – 5 = 22,

Explanation:
Subtracting 5 from 27 we will get 22.

Question 20.
47 – 5 =
47 – 5 = 42,

Explanation:
Subtracting 5 from 47 we will get 42.

Question 21.
43 – 3 =
43 – 3 = 40,

Explanation:
Subtracting 3 from 43 we will get 40.

Question 22.
87 – 7 =
87 – 7 = 80,

Explaination:
Subtracting 7 from 87 we will get 80.

Question 23.
8 – 7 =
8 – 7 = 1,

Explanation:
Subtracting 7 from 8 we will get 1.

Question 24.
18 – 7 =
18 – 7 = 11,

Explanation:
Subtracting 7 from 18 we will get 11.

Question 25.
58 – 7 =
58 – 7 = 51,

Explanation:
Subtracting 7 from 58 we will get 51

Question 26.
62 – 2 =
62 – 2 = 60,

Explanation:
Subtracting 2 from 62 we will get 60

Question 27.
9 – 8 =
9 – 8 = 1,

Explanation:
Subtracting 8 from 9 we will get 1.

Question 28.
19 – 8 =
19 – 8 = 11,

Explanation:
Subtracting 8 from 19 we will get 11.

Question 29.
29 – 8 =
29 – 8 = 21,

Explanation:
Subtracting 8 from 29 we will get 21.

Question 30.
69 – 8 =
69 – 8 = 61,

Explanation:
Subtracting 8 from 69 we will get 61.

Question 31.
7 – 3 =
7 – 3 = 4,

Explanation:
Subtracting 3 from 7 we will get 4.

Question 32.
17 – 3 =
17 – 3 = 14,

Explanation:
Subtracting 3 from 17 we will get 14.

Question 33.
77 – 3 =
77 – 3 = 74,

Explanation:
Subtracting 3 from 77 we will get 74.

Question 34.
59 – 9 =
59 – 9 = 50,

Explanation:
Subtracting 9 from 59 we will get 50.

Question 35.
9 – 7 =
9 – 7 = 2,

Explanation:
Subtracting 7 from 9 we will get 2.

Question 36.
19 – 7 =
19 – 7 = 12,

Explanation:
Subtracting 7 from 19 we will get 12.

Question 37.
89 – 7 =
89  – 7 = 82,

Explanation:
Subtracting 7 from 89 we will get 82.

Question 38.
99 – 5 =
99 – 5 = 94,

Explanation:
Subtracting 5 from 99 we will get 94.

Question 39.
78 – 6 =
78 – 6 = 72,

Explanation:
Subtracting 6 from 78 we will get 72.

Question 40.
58 – 5 =
58 – 5 = 53,

Explanation:
Subtracting 5 from 58 we will get 53.

Question 41.
39 – 7 =
39 – 7 = 32,

Explanation:
Subtracting 7 from 39 we will get 32

Question 42.
28 – 6 =
28 – 6 = 22,

Explanation:
Subtracting 6 from 28 we will get 22

Question 43.
49 – 4 =
49 – 4 = 45,

Explanation:
Subtracting 4 from 49 we will get 45.

Question 44.
67 – 4 =
67 – 4 = 63,

Explanation:
Subtracting 4 from 67 we will get 63.

B. Subtraction.

Question 1.
2 – 1 = 1
2 – 1 = 1,

Explanation:
Subtracting 1 from 2 we will get 1.

Question 2.
12 – 1 = 11
12 – 1 = 11,

Explanation:
Subtracting 1 from 12 we will get 11.

Question 3.
22 – 1 =
22 – 1 = 21,

Explanation:
Subtracting 1 from 22 we will get 21.

Question 4.
52 – 1 = 51
52 – 1 = 51,

Explanation:
Subtracting 1 from 52 we will get 51.

Question 5.
5 – 2 = 3
5 – 2 = 3,

Explanation:
Subtracting 2 from 5 we will get 3.

Question 6.
15 – 2 = 13
15 – 2 = 13,

Explanation:
Subtracting 2 from 15 we will get 13.

Question 7.
25 – 2 = 13
25 – 2 = 23,

Explanation:
Subtracting 2 from 25 we will get 23.

Question 8.
65 – 2 = 63
65 – 2 = 63,

Explanation:
Subtracting 2 from 65 we will get 63.

Question 9.
4 – 3 = 1
4 – 3 = 1,

Explanation:
Subtracting 3 from 4 we will get 1.

Question 10.
14 – 3 = 11
14 – 3 = 11,

Explanation:
Subtracting 3 from 14 we will get 11.

Question 11.
24 – 3 = 21
24 – 3 = 21,

Explanation:
Subtracting 3 from 24 we will get 21.

Question 12.
84 – 3 = 81
84 – 3 = 81,

Explanation:
Subtracting 3 from 84 we will get 81.

Question 13.
7 – 4 = 3
7 – 4 = 3,

Explanation:
Subtracting 4 from 7 we will get 3.

Question 14.
17 – 4 = 13
17 – 4 = 13,

Explanation:
Subtracting 4 from 17 we will get 13.

Question 15.
27 – 4 = 23
27 – 4 = 23,

Explanation:
Subtracting 4 from 27 we will get 23.

Question 16.
97 – 4 = 93
97 – 4 = 93,

Explanation:
Subtracting 4 from 97 we will get 93.

Question 17.
6 – 5 = 1
6 – 5 = 1,

Explanation:
Subtracting 5 from 6 we will get 1.

Question 18.
16 – 5 = 11
16 – 5 = 11,

Explanation:
Subtracting 5 from 16 we will get 11.

Question 19.
26 – 5 = 21
26 – 5 = 21,

Explanation:
Subtracting 5 from 26 we will get 21.

Question 20.
46 – 5 = 41
46 – 5 = 41,

Explanation:
Subtracting 5 from 46 we will get 41.

Question 21.
23 – 3 = 20
23 – 3 = 20,

Explanation:
Subtracting 3 from 23 we will get 20.

Question 22.
67 – 7 = 60
67 – 7 = 60,

Explanation:
Subtracting 7 from 67 we will get 60.

Question 23.
8 – 7 = 1
8 – 7 = 1,

Explanation:
Subtracting 7 from 8 we will get 1.

Question 24.
18 – 7 = 11
18 –  7 = 11,

Explanation:
Subtracting 18 from 7 we will get 11.

Question 25.
68 – 7 = 61
68 – 7 = 61,

Explanation:
Subtracting 7 from 68 we will get 61.

Question 26.
32 – 2 = 30
32 – 2 = 30,

Explanation:
Subtracting 2 from 32 we will get 30.

Question 27.
9 – 8 = 1
9 – 8 = 1,

Explanation:
Subtracting 9 from 8 we will get 1.

Question 28.
19 – 8 = 11
19 – 8 = 11,

Explanation:
Subtracting 19 from 8 we will get 11.

Question 29.
29 – 8 = 21
29 – 8 = 21,

Explanation:
Subtracting 8 from 29 we will get 21.

Question 30.
79 – 8 =
79 – 8 = 71,

Explanation:
Subtracting 8 from 79 we will get 71.

Question 31.
8 – 4 = 4
8 – 4 = 4,

Explanation:
Subtracting 4 from 8 we will get 4.

Question 32.
18 – 4 = 14
18 – 4 = 14,

Explanation:
Subtracting 4 from 18 we will get 14.

Question 33.
78 – 4 = 74
78 – 4 = 74,

Explanation:
Subtracting 4 from 78 we will get 74.

Question 34.
89 – 9 = 80
89 – 9 = 80,

Explanation:
Subtracting 9 from 89 we will get 80.

Question 35.
9 – 7 =
9 – 7 = 2,

Explanation:
Subtracting 7 from 9 we will get 2.

Question 36.
19 – 7 = 12
19 – 7 = 12,

Explanation:
Subtracting 7 from 19 we will get 12.

Question 37.
79 – 7 = 72
79 – 7 = 72,

Explanation:
Subtracting 7 from 79 we will get 72.

Question 38.
89 – 5 = 84
89 – 5 = 84,

Explanation:
Subtracting 5 from 89 we will get 84.

Question 39.
68 – 6 = 62
68 – 6 = 62,

Explanation:
Subtracting 6 from 68 we will get 62.

Question 40.
48 – 5 = 43
48 – 5 = 43,

Explanation:
Subtracting 5 from 48 we will get 43.

Question 41.
29 – 7 = 22
29 – 7 = 22,

Explanation:
Subtracting 7 from 29 we will get 22.

Question 42.
38 – 6 = 32
38 – 6 = 32,

Explanation:
Subtracting 6 from 32 we will get 32.

Question 43.
59 – 4 = 55
59 – 4 = 55,

Explanation:
Subtracting 4 from 59 we will get 55.

Question 44.
77 – 4 = 73
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
3 paper clips, 9 cm,

Explanation:
Line A has 3 paper clips and measures 9 cm.

b. Line B
__2___ paper                 clips __6_ cm
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.
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.
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
3 paper clips, 9 cm,

Explanation:
Line L has 3 paper clips and measures 9 cm.

b. Line M
__1__ paper  clips __3___ cm
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.
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.
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
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.
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.
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.
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.
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.
______________________________________________________________
______________________________________________________________
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
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
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
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.
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
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
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
Line Z doubled would measure about 8 paper clips or

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
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
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.
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.
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
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.
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.
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.
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.
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
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
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?
________________________________________________________
________________________________________________________