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## Engage NY Eureka Math 2nd Grade Module 4 Lesson 2 Answer Key

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### Eureka Math Grade 2 Module 4 Lesson 2 Problem Set Answer Key

Question 1.
Solve using place value strategies. Use your personal white board to show the arrow way or number bonds, or just use mental math, and record your answers.
a. 5 tens + 3 tens = ___8___ tens
50 + 30 = __80____

50 + 30 = 80.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
5 tens + 3 tens.
5 tens = 5 x 10.
3 tens = 3 x 10.
50 + 30 = 80.

2 tens + 7 tens = ____9__ tens
20 + 70 = ___90___

20 + 70 = 90.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
2 tens + 7 tens.
2 tens = 2 x 10.
7 tens = 7 x 10.
20 + 70 = 90.

b. 24 + 30 = _54____               50 + 24 = __74___               14 + 50 = __64___

24 + 30 = 54.
50 + 24 = 74.
14 + 50 = 64.

Explanation:
In the above-given question,
given that,
24 + 30, 50 + 24, 14 + 50.
24 + 30 = 54.
50 + 24 = 74.
14 + 50 = 64.

c. 20 + 37 = __57___               37 + 40 = __77___               60 + 27 = ___87__

20 + 37 = 57.
37 + 40 = 77.
60 + 27 = 87.

Explanation:
In the above-given question,
given that,
20 + 37, 37 + 40, 60 + 27.
20 + 37 = 57.
37 + 40 = 77.
60 + 27 = 87.

d. 57 + ___30__ = 87               __40___ + 34 = 74               19 + __50___ = 69

57 + 30 = 87.
40 + 34 = 74.
19 + 50 = 69.

Explanation:
In the above-given question,
given that,
57 + 30, 40 + 34, 19 + 50.
57 + 30 = 87.
40 + 34 = 74.
19 + 50 = 69.

e. ___30__ + 56 = 86               38 + ___40__ = 78               12 + __50___ = 72

56 + 30 = 86.
40 + 38 = 78.
12 + 50 = 72.

Explanation:
In the above-given question,
given that,
30 + 56 = 86, 38 + 40 = 78, 12 + 50 = 72.
56 + 30 = 86.
40 + 38 = 78.
12 + 50 = 72.

Question 2.
Solve using place value strategies.
a. 8 tens – 2 tens = __6___ tens
80 – 20 = __60___

80 – 20 = 60.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
8 tens – 2 tens.
8 tens = 8 x 10.
2 tens = 2 x 10.
80 – 20 = 60.

7 tens – 3 tens = __4___ tens
70 – 30 = __40___

70 – 30 = 40.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
7 tens – 3 tens.
7 tens = 7 x 10.
3 tens = 3 x 10.
70 – 30 = 40.

b. 78 – 40 = __38___               56 – 30 = _26____               88 – 50 = __38___

78 – 40 = 38.
56 – 30 = 26.
88 – 50 = 38.

Explanation:
In the above-given question,
given that,
78 – 40, 56 – 30, 88 – 50.
78 – 40 = 38.
56 – 30 = 26.
88 – 50 = 38.

c. 84 – __60__ = 24               57 – __50__ = 37               93 – __50__ = 43

84 – 60 = 24.
57 – 50 = 37.
93 – 50 = 43.

Explanation:
In the above-given question,
given that,
84 – 60, 57 – 50, 93 – 50.
84 – 60 = 24.
57 – 50 = 37.
93 – 50 = 43.

d. 83 – _60___ = 23               54 – ___20_ = 34               91 – __50__ = 41

83 – 60 = 23.
54 – 20 = 34.
91 – 50 = 41.

Explanation:
In the above-given question,
given that,
83 – 60, 54 – 20, 91 – 50.
83 – 60 = 23.
54 – 20 = 34.
91 – 50 = 41.

Question 3.
Solve.
a. 39 + ____30__ = 69

39 + 30 = 69.

Explanation:
In the above-given question,
given that,
39 + 30 = 69.
3 tens + 9 ones.
3 tens = 30.
39 + 30 = 69.

b. 8 tens 7 ones – 3 tens = ___57____

87 – 30 = 57.

Explanation:
In the above-given question,
given that,
87 – 30 = 57.
8 tens + 7 ones.
3 tens = 30.
87 – 30 = 57.

c. ___2 tens___ + 5 tens = 7 tens

20 + 50 = 70.

Explanation:
In the above-given question,
given that,
20 + 50 = 70.
2 tens + 5 tens.
7 tens = 70.
20 + 50 = 70.

d. __3_tens___ + 5 tens 6 ones = 8 tens 6 ones

56 + 30 = 86.

Explanation:
In the above-given question,
given that,
56 + 30 = 86.
5 tens + 6 ones.
3 tens = 30.
56 + 30 = 86.

e. 48 ones – 2 tens = __2___ tens __8___ ones

48 – 20 = 28.

Explanation:
In the above-given question,
given that,
48 – 20 = 28.
4 tens + 8 ones.
2 tens = 20.
48 – 28 = 20.

Question 4.
Mark had 78 puzzle pieces. He lost 30 pieces. How many pieces does Mark have left? Use the arrow way to show your simplifying strategy.

The number of pieces does Mark has left = 48 pieces.

Explanation:
In the above-given question,
given that,
He lost 30 pieces.
78 – 30.
48.
so the number of pieces does Mark has left = 48 pieces.

### Eureka Math Grade 2 Module 4 Lesson 2 Exit Ticket Answer Key

Fill in the missing number to make each statement true.

Question 1.
50 + 20 = _70____

50 + 20 = 70.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
5 tens + 2 tens.
5 tens = 5 x 10.
2 tens = 2 x 10.
50 + 20 = 70.

Question 2.
4 tens + 3 tens = __7___ tens

40 + 30 = 70.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
4 tens + 3 tens.
4 tens = 4 x 10.
3 tens = 3 x 10.
40 + 30 = 70.

Question 3.
7 tens – ___2__ tens = 5 tens

70 – 20 = 50.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
7 tens – 2 tens.
7 tens = 7 x 10.
2 tens = 2 x 10.
70 – 20 = 50.

Question 4.
___83__ – 20 = 63

83 – 20 = 63.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
8 tens – 2 tens.
8 tens = 8 x 10.
2 tens = 2 x 10.
80 – 20 = 63.

Question 5.
6 tens + 1 ten 4 ones = 9 tens 4 ones – __2___ tens

94 – 20 = 74.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
9 tens + 4 tens.
9 tens = 9 x 10.
2 tens = 2 x 10.
90 – 20 = 70.

## Eureka Math Grade 2 Module 4 Lesson 2 Homework Answer Key

Question 1.
Solve using place value strategies. Use scrap paper to show the arrow way or number bonds, or just use mental math, and record your answers.

 a. 2 tens + 3 tens = __5___ tens 20 + 30 = __50___ 2 tens 4 ones + 3 tens = _5_ tens _4_ ones 24 + 30 = __54___ b. 5 tens + 4 tens = __9___ tens 50 + 40 = _90____ 5 tens 9 ones + 4 tens = _9_ tens _9_ ones 59 + 40 = __99__

20 + 30 = 50.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
2 tens + 3 tens.
2 tens = 2 x 10.
3 tens = 3 x 10.
20 + 30 = 50.

50 + 40 = 90.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
5 tens + 4 tens.
5 tens = 5 x 10.
4 tens = 4 x 10.
50 + 40 = 90.

c. 28 + 40 = _____               18 + 30 = _____               60 + 38 = _____

28 + 40 = 68.
18 + 30 = 48.
60 + 38 = 98.

Explanation:
In the above-given question,
given that,
28 + 40, 18 + 30, 60 + 38.
28 + 40 = 68.
18 + 30 = 48.
60 + 38 = 98.

d. 30 + 25 = __55___               35 + 50 = _85____               15 + 20 = _35____

30 + 25 = 55.
35 + 50 = 85.
15 + 20 = 35.

Explanation:
In the above-given question,
given that,
30 + 25, 35 + 50, 15 + 20.
30 + 25 = 55.
35 + 50 = 85.
15 + 20 = 35.

e. 37 + __10___ = 47               ___30__ + 27 = 57               17 + ___70__ = 87

37 + 10 = 47.
30 + 27 = 57.
17 + 70 = 87.

Explanation:
In the above-given question,
given that,
37 + 10, 30 + 27, 17 + 70.
37 + 10 = 47.
30 + 27 = 57.
17 + 70 = 87.

f. __40___ + 22 = 62               29 + __50___ = 79               11 + ___80__ = 91

37 + 10 = 47.
30 + 27 = 57.
17 + 70 = 87.

Explanation:
In the above-given question,
given that,
37 + 10, 30 + 27, 17 + 70.
37 + 10 = 47.
30 + 27 = 57.
17 + 70 = 87.

Question 2.
Find each sum. Then use >, <, or = to compare.
a. 23 + 40 ___>__ 20 + 33

63 > 53.

Explanation:
In the above-given question,
given that,
find each sum and compare.
23 + 40 = 63.
20 + 33 = 53.
63 > 53.

b. 50 + 18 ___=__ 48 + 20

68 = 68.

Explanation:
In the above-given question,
given that,
find each sum and compare.
50 + 18 = 68.
20 + 48 = 68.
68 = 68.

c. 19 + 60 __>___ 39 + 30

79 > 69.

Explanation:
In the above-given question,
given that,
find each sum and compare.
19 + 60 = 79.
30 + 39 = 69.
79 > 69.

d. 64 + 10 __<___ 49 + 20

74 < 69.

Explanation:
In the above-given question,
given that,
find each sum and compare.
64 + 10 = 74.
49 + 20 = 69.
74 < 69.

e. 70 + 21 _,<____ 18 + 80

91 < 98.

Explanation:
In the above-given question,
given that,
find each sum and compare.
21 + 70 = 91.
80 + 18 = 98.
91 < 98.

f. 35 + 50 __<___ 26 + 60

85 < 86.

Explanation:
In the above-given question,
given that,
find each sum and compare.
35 + 50 = 85.
26 + 60 = 86.
85 < 86.

Question 3.
Solve using place value strategies.

 a. 6 tens – 2 tens = __4_ tens 60 – 20 = __40__6 tens 3 ones – 3 tens = _3_ tens _3_ ones 63 – 30 = __33___ b. 8 tens – 5 tens = _3__ tens 80 – 50 = __30__8 tens 9 ones – 5 tens = _3_ tens _9_ ones 89 – 50 = _39___

60 – 20 = 40.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
6 tens – 2 tens.
6 tens = 6 x 10.
2 tens = 2 x 10.
60 – 20 = 40.

80 – 50 = 30.

Explanation:
In the above-given question,
given that,
solve using place value strategies.
8 tens – 5 tens.
8 tens = 8 x 10.
5 tens = 5 x 10.
80 – 50 = 30.

c. 55 – 20 = _35____               75 – 30 = __45___            85 – 50 = _35____

55 – 20 = 35.
75 – 30 = 45.
85 – 50 = 35.

Explanation:
In the above-given question,
given that,
55-20, 75 – 30, 85 – 50.
55 – 20 = 35.
75 – 30 = 45.
85 – 50 = 35.

d. 72 – __50__ = 22               49 – __30__ = 19               88 – __60__ = 28

72 – 50 = 22.
49 – 30 = 19.
88 – 60 = 28.

Explanation:
In the above-given question,
given that,
72 – 50, 49 – 30, 88 – 60.
72 – 50 = 22.
49 – 30 = 19.
88 – 60 = 28.

e. 67 – __20__ = 47               71 – _20___ = 51               99 – ___30_ = 69

67 – 20 = 47.
71 – 20 = 51.
99 – 30 = 69.

Explanation:
In the above-given question,
given that,
67 – 20, 71 – 20, 99 – 30.
67 – 20 = 47.
71 – 20 = 51.
99 – 30 = 69.

Question 4.
Complete each more than or less than statement.
a. 20 less than 58 is ___38___.

58 – 20 = 38.

Explanation:
In the above-given question,
given that,
20 less than 58.
58 – 20 = 38.

b. 36 more than 40 is ___76.___.

36 + 40 = 76.

Explanation:
In the above-given question,
given that,
36 more than 40.
36 + 40 = 76.

c. 40 less than _20____ is 28.

40 – 20 = 28.

Explanation:
In the above-given question,
given that,
40 less than 20.
40 – 20 = 28.

d. 50 more than ___14___ is 64.

14 + 50 = 64.

Explanation:
In the above-given question,
given that,
50 more than 14.
14 + 50 = 64.

Question 5.
There were 68 plates in the sink at the end of the day. There were 40 plates in the sink at the beginning of the day. How many plates were added throughout the day? Use the arrow way to show your simplifying strategy.