## Engage NY Eureka Math 2nd Grade Module 7 Lesson 20 Answer Key

### Eureka Math Grade 2 Module 7 Lesson 20 Sprint Answer Key

A.Subtraction Patterns Question 1.
8 – 1 =
8 – 1 = 7

Question 2.
18 – 1 =
18 – 1 = 17

Question 3.
8 – 2 =
8 – 2 = 16

Question 4.
18 – 2 =
18 – 2 = 16

Question 5.
8 – 5 =
8 – 5 = 3

Question 6.
18 – 5 =
18 – 5 = 13

Question 7.
28 – 5 =
28 – 5 = 23

Question 8.
58 – 5 =
58 – 5 = 53

Question 9.
58 – 7 =
58 – 7 = 51

Question 10.
10 – 2 =
10 – 2 = 8

Question 11.
11 – 2 =
11 – 2 = 9

Question 12.
21 – 2 =
21 – 2 = 19

Question 13.
61 – 2 =
61 – 2 = 59

Question 14.
61 – 3 =
61 – 3 = 58

Question 15.
61 – 5 =
61 – 5 = 56

Question 16.
10 – 5 =
10 – 5 = 5

Question 17.
20 – 5 =
20 – 5 = 15

Question 18.
30 – 5 =
30 – 5 = 25

Question 19.
70 – 5 =
70 – 5 = 65

Question 20.
72 – 5 =
72 – 5 = 87

Question 21.
4 – 2 =
4 – 2 = 2

Question 22.
40 – 20 =
40 – 20 = 20

Question 23.
41 – 20 =
41 – 20 = 21

Question 24.
46 – 20 =
46 – 20 = 26

Question 25.
7 – 5 =
7 – 5 = 2

Question 26.
70 – 50 =
70 – 50 = 20

Question 27.
71 – 50 =
71 – 50 = 21

Question 28.
78 – 50 =
78 – 50 = 28

Question 29.
80 – 40 =
80 – 40 = 40

Question 30.
84 – 40 =
84 – 40 = 44

Question 31.
90 – 60 =
90 – 60 = 30

Question 32.
97 – 60 =
97 – 60 = 37

Question 33.
70 – 40 =
70 – 40 = 30

Question 34.
72 – 40 =
72 – 40 = 32

Question 35.
56 – 4 =
56 – 4 = 52

Question 36.
52 – 4 =
52 – 4 = 48

Question 37.
50 – 4 =
50 – 4 = 46

Question 38.
60 – 30 =
60 – 30 = 30

Question 39.
90 – 70 =
90 – 70 = 20

Question 40.
80 – 60 =
80 – 60 = 20

Question 41.
96 – 40 =
96 – 40 = 56

Question 42.
63 – 40 =
63 – 40 = 23

Question 43.
79 – 30 =
79 – 30 = 49

Question 44.
76 – 9 =
76 – 9 = 87

B. Subtraction Patterns. Question 1.
7 – 1 =
7 – 1 = 6

Question 2.
17 – 1 =
17 – 1 = 16

Question 3.
7 – 2 =
7 – 2 = 5

Question 4.
17 – 2 =
17 – 2 = 5

Question 5.
7 – 5 =
7 – 5 = 2

Question 6.
17 – 5 =
17 – 5 = 12

Question 7.
27 – 5 =
27 – 5 = 22

Question 8.
57 – 5 =
57 – 5 = 52

Question 9.
57 – 6 =
57 – 6 = 51

Question 10.
10 – 5 =
10 – 5 = 5

Question 11.
11 – 5 =
11 – 5 = 6

Question 12.
21 – 5 =
21 – 5 = 16

Question 13.
61 – 5 =
61 – 5 = 56

Question 14.
61 – 4 =
61 – 4 = 56

Question 15.
61 – 2 =
61 – 2 = 59

Question 16.
10 – 2 =
10 – 2 = 8

Question 17.
20 – 2 =
20 – 2 = 18

Question 18.
30 – 2 =
30 – 2 = 28

Question 19.
70 – 2 =
70 – 2 = 68

Question 20.
71 – 2 =
71 – 2 = 69

Question 21.
5 – 2 =
5 – 2 = 3

Question 22.
50 – 20 =
50 – 20 = 30

Question 23.
51 – 20 =
51 – 20 = 31

Question 24.
56 – 20 =
56 – 20 = 36

Question 25.
8 – 5 =
8 – 5 = 3

Question 26.
80 – 50 =
80 – 50 = 30

Question 27.
81 – 50 =
81 – 50 = 31

Question 28.
87 – 50 =
87 – 50 = 31

Question 29.
60 – 30 =
60 – 30 = 30

Question 30.
64 – 30 =
64 -30 = 34

Question 31.
80 – 60 =
80 – 60 = 20

Question 32.
85 – 60 =
85 – 60 = 25

Question 33.
70 – 30 =
70 -30 = 40

Question 34.
72 – 30 =
72 – 30 = 42

Question 35.
76 – 4 =
76 – 4 = 72

Question 36.
72 – 4 =
72 – 4 = 68

Question 37.
70 – 4 =
70 – 4 = 66

Question 38.
80 – 40 =
80 – 40 = 40

Question 39.
90 – 60 =
90 – 60 = 30

Question 40.
60 – 40 =
60 – 40 = 20

Question 41.
93 – 40 =
93 – 40 = 53

Question 42.
67 – 40 =
67 – 40 = 27

Question 43.
78 – 30 =
78 – 30 = 48

Question 44.
56 – 9 =
56 – 9 = 47

### Eureka Math Grade 2 Module 7 Lesson 20 Problem Set Answer Key

Solve using tape diagrams. Use a symbol for the unknown.

Question 1.
Mr. Ramos has knitted 19 inches of a scarf he wants to be 1 yard long. How many more inches of scarf does he need to knit? Question 2.
In the 100-yard race, Jackie has run 76 yards. How many more yards does she have to run? Question 3.
Frankie has a 64-inch piece of rope and another piece that is 18 inches shorter than the first. What is the total length of both ropes? Question 4.
Maria had 96 inches of ribbon. She used 36 inches to wrap a small gift and 48 inches to wrap a larger gift. How much ribbon did she have left? Question 5.
The total length of all three sides of a triangle is 96 feet. The triangle has two sides that are the same length. One of the equal sides measures 40 feet. What is the length of the side that is not equal?  Question 6.
The length of one side of a square is 4 yards. What is the combined length of all four sides of the square? ### Eureka Math Grade 2 Module 7 Lesson 20 Exit Ticket Answer Key

Solve using a tape diagram. Use a symbol for the unknown.

Question 1.
Jasmine has a jump rope that is 84 inches long. Marie’s is 13 inches shorter than Jasmine’s. What is the length of Marie’s jump rope? ### Eureka Math Grade 2 Module 7 Lesson 20 Homework Answer Key

Solve using tape diagrams. Use a symbol for the unknown.

Question 1.
Luann has a piece of ribbon that is 1 yard long. She cuts off 33 inches to tie a gift box. How many inches of ribbon are not used? Question 2.
Elijah runs 68 yards in a 100-yard race. How many more yards does he have to run? Question 3.
Chris has a 57-inch piece of string and another piece that is 15 inches longer than the first. What is the total length of both strings? Question 4.
Janine knitted 12 inches of a scarf on Friday and 36 inches on Saturday. She wants the scarf to be 72 inches long. How many more inches does she need to knit?    