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Engage NY Eureka Math 2nd Grade Module 4 Lesson 18 Answer Key

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Eureka Math Grade 2 Module 4 Lesson 18 Sprint Answer Key

A. Addition Crossing a Ten
Eureka Math Grade 2 Module 4 Lesson 18 Sprint Answer Key 1

Addition:
38 + 1 = 39, 47 + 2 = 49, 56 + 3 = 59, 65 + 4 = 69, 31 + 8 = 39, 42 + 7 = 49, 53 + 6 = 59, 64 + 5 = 69, 49 + 1 = 50, 49 + 2 = 51, 49 + 3 = 52, 49 + 5 = 54, 58 + 2 = 60, 58 + 3 = 61, 58 + 4 = 62, 58 + 6 = 64, 67 + 3 = 70, 57 + 4 = 61, 57 + 5 = 62, 57 + 7 = 64, 85 + 5 = 90, 85 + 6 = 91, 85 + 7 = 92, 85 + 9 = 94, 76 + 4 = 80, 76 + 5 = 81, 76 + 6 = 82, 76 + 9 = 85, 64 + 6 = 70, 64 + 7 = 71, 76 + 8 = 84, 43 + 7 = 50, 43 + 8 = 51, 43 + 9 = 52, 52 + 8 = 60, 52 + 9 = 61, 59 + 1 = 60, 59 + 3 = 62, 58 + 2 = 60, 58 + 4 = 62, 77 + 3 = 80, 77 + 5 = 82, 35 + 5 = 40, 35 + 8 = 43.

Explanation:
In the above-given question,
given that,
Adding the numbers crossing ten.
38 + 1 = 39, 47 + 2 = 49, 56 + 3 = 59, 65 + 4 = 69, 31 + 8 = 39, 42 + 7 = 49, 53 + 6 = 59, 64 + 5 = 69, 49 + 1 = 50, 49 + 2 = 51, 49 + 3 = 52, 49 + 5 = 54, 58 + 2 = 60, 58 + 3 = 61, 58 + 4 = 62, 58 + 6 = 64, 67 + 3 = 70, 57 + 4 = 61, 57 + 5 = 62, 57 + 7 = 64, 85 + 5 = 90, 85 + 6 = 91, 85 + 7 = 92, 85 + 9 = 94, 76 + 4 = 80, 76 + 5 = 81, 76 + 6 = 82, 76 + 9 = 85, 64 + 6 = 70, 64 + 7 = 71, 76 + 8 = 84, 43 + 7 = 50, 43 + 8 = 51, 43 + 9 = 52, 52 + 8 = 60, 52 + 9 = 61, 59 + 1 = 60, 59 + 3 = 62, 58 + 2 = 60, 58 + 4 = 62, 77 + 3 = 80, 77 + 5 = 82, 35 + 5 = 40, 35 + 8 = 43.
Eureka-Math-Grade-2-Module-4-Lesson -18- Answer Key-1

Question 1.
38 + 1 = 39.

Answer:
38 + 1 = 39.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
38 + 1 = 39.
39 – 1 = 38.

Question 2.
47 + 2 = 49.

Answer:
47 + 2 = 49.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
47 + 2 = 49.
49 – 2 = 47.

Question 3.
56 + 3 = 59.

Answer:
56 + 3 = 59.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
56 + 3 = 59.
59 – 3 = 56.

Question 4.
65 + 4 = 69.

Answer:
65 + 4 = 69.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
65 + 4 = 69.
69 – 4 = 65.

Question 5.
31 + 8 = 39.

Answer:
31 + 8 = 39.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
31 + 8 = 39.
39 – 8 = 31.

Question 6.
42 + 7 = 49.

Answer:
42 + 7 = 49.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
42 + 7 = 49.
49 – 7 = 42.

Question 7.
53 + 6 = 59.

Answer:
53 + 6 = 59.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
53 + 6 = 59.
59 – 6 = 53.

Question 8.
64 + 5 = 69.

Answer:
64 + 5 = 69.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
64 + 5 = 69.
69 – 5 = 64.

Question 9.
49 + 1 = 50.

Answer:
49 + 1 = 50.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
49 + 5 = 50.
50 – 5 = 49.

Question 10.
49 + 2 = 51.

Answer:
49 + 2 = 51.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
49 + 2 = 51.
51 – 2 = 49.

Question 11.
49 + 3 = 52.

Answer:
49 + 3 = 52.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
49 + 3 = 52.
52 – 3 = 49.

Question 12.
49 + 5 = 54.

Answer:
49 + 5 = 54.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
49 + 5 = 54.
54 – 5 = 49.

Question 13.
58 + 2 = 60.

Answer:
58 + 2 = 60.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 2 = 60.
60 – 2 = 58.

Question 14.
58 + 3 = 61.

Answer:
58 + 3 = 61.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 3 = 61.
61 – 3 = 58.

Question 15.
58 + 4 = 62.

Answer:
58 + 4 = 62.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 4 = 62.
62 – 4 = 58.

Question 16.
58 + 6 = 64.

Answer:
58 + 6 = 64.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 8 = 64.
64 – 8 = 58.

Question 17.
67 + 3 = 70.

Answer:
67 + 3 = 70.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
67 + 3 = 70.
70 – 3 = 67.

Question 18.
57 + 4 = 61.

Answer:
57 + 4 = 61.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
57 + 4 = 61.
61 – 4 = 57.

Question 19.
57 + 5 = 62.

Answer:
57 + 5 = 62.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
57 + 5 = 62.
62 – 5 = 57.

Question 20.
57 + 7 = 64.

Answer:
57 + 7 = 64.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
57 + 7 = 64.
64 – 7 = 57.

Question 21.
85 + 5 = 90.

Answer:
85 + 5 = 90.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
85 + 5 = 90.
90 – 5 = 85.

Question 22.
85 + 6 = 91.

Answer:
85 + 6 = 91.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
85 + 6 = 91.
91 – 6 = 85.

Question 23.
85 + 7 = 92.

Answer:
85 + 7 = 92.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
85 + 7 = 92.
92 – 7 = 85.

Question 24.
85 + 9 = 94.

Answer:
85 + 9 = 94.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
85 + 9 = 94.
94 – 9 = 85.

Question 25.
76 + 4 = 80.

Answer:
76 + 4 = 80.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
76 + 4 = 80.
80 – 4 = 76.

Question 26.
76 + 5 = 81.

Answer:
76 + 5 = 81.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
76 + 5 = 81.
81 – 5 = 76.

Question 27.
76 + 6 = 82.

Answer:
76 + 6 = 82.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
76 + 6 = 82.
82 – 6 = 76.

Question 28.
76 + 9 = 85.

Answer:
76 + 9 = 85.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
76 + 9 = 85.
85 – 9 = 76.

Question 29.
64 + 6 = 70.

Answer:
64 + 6 = 70.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
64 + 6 = 70.
70 – 6 = 64.

Question 30.
64 + 7 = 71.

Answer:
64 + 7 = 71.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
64 + 7 = 71.
71 – 7 = 64.

Question 31.
76 + 8 = 84.

Answer:
76 + 8 = 84.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
76 + 8 = 84.
84 – 8 = 76.

Question 32.
43 + 7 = 50.

Answer:
43 + 7 = 50.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
43 + 7 = 50.
50 – 7 = 43.

Question 33.
43 + 8 = 51.

Answer:
43 + 8 = 51.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
43 + 8 = 51.
51 – 8 = 43.

Question 34.
43 + 9 = 52.

Answer:
43 + 9 = 52.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
43 + 9 = 52.
52 – 9 = 43.

Question 35.
52 + 8 = 60.

Answer:
52 + 8 = 60.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
52 + 8 = 60.
60 – 8 = 52.

Question 36.
52 + 9 = 61.

Answer:
52 + 9 = 61.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
52 + 9 = 61.
61 – 9 = 52.

Question 37.
59 + 1 = 60.

Answer:
59 + 1 = 60.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
59 + 1 = 60.
60 – 1 = 59.

Question 38.
59 + 3 = 62.

Answer:
59 + 3 = 62.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
59 + 3 = 62.
62 – 3 = 59.

Question 39.
58 + 2 = 60.

Answer:
58 + 2 = 60.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 2 = 60.
60 – 2 = 58.

Question 40.
58 + 4 = 62.

Answer:
58 + 4 = 62.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 4 = 62.
62 – 4 = 58.

Question 41.
77 + 3 = 80.

Answer:
77 + 3 = 80.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
77 + 3 = 80.
80 – 3 = 77.

Question 42.
77 + 5 = 82.

Answer:
77 + 5 = 82.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
77 + 5 = 82.
82 – 5 = 77.

Question 43.

Answer:
35 + 5 = 40.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
35 + 5 = 40.
40 – 5 = 35.

35 + 8 = 43.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
35 + 5 = 40.
40 – 5 = 35.

Question 44.
35 + 8 = 43.

Answer:
35 + 8 = 43.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
35 + 8 = 43.
43 – 8 = 35.

B. Addition Crossing a Ten

Eureka Math Grade 2 Module 4 Lesson 18 Sprint Answer Key 2

Answer:
28 + 1 = 29, 37 + 2 = 39, 46 + 3 = 49, 55 + 4 = 59, 21 + 8 = 29, 32 + 7 = 39, 43 + 6 = 49, 54 + 5 = 59, 39 + 1 = 40, 39 + 2 = 41, 39 + 3 = 42, 39 + 5 = 44, 48 + 2 = 50, 48 + 3 = 51, 48 + 4 = 52, 48 + 6 = 54, 57 + 3 = 60, 57 + 4 = 61, 57 + 5 = 62, 57 + 7 = 64, 75 + 5 = 80, 75 + 6 = 81, 75 + 7 = 82, 75 + 9 = 84, 66 + 4 = 70, 66 + 5 = 71, 66 + 6 = 72, 66 + 9 = 75, 54 + 6 = 60, 54 + 7 = 61, 54 + 8 = 62, 33 + 7 = 40, 33 + 8 = 41, 33 + 9 = 42, 42 + 8 = 50, 42 + 9 = 51, 49 + 1 = 50, 49 + 3 = 52, 58 + 2 = 60, 58 + 4 = 62, 67 + 3 = 70, 67 + 5 = 72, 85 + 5 = 90, 85 + 8 = 93.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
28 + 1 = 29, 37 + 2 = 39, 46 + 3 = 49, 55 + 4 = 59, 21 + 8 = 29, 32 + 7 = 39, 43 + 6 = 49, 54 + 5 = 59, 39 + 1 = 40, 39 + 2 = 41, 39 + 3 = 42, 39 + 5 = 44, 48 + 2 = 50, 48 + 3 = 51, 48 + 4 = 52, 48 + 6 = 54, 57 + 3 = 60, 57 + 4 = 61, 57 + 5 = 62, 57 + 7 = 64, 75 + 5 = 80, 75 + 6 = 81, 75 + 7 = 82, 75 + 9 = 84, 66 + 4 = 70, 66 + 5 = 71, 66 + 6 = 72, 66 + 9 = 75, 54 + 6 = 60, 54 + 7 = 61, 54 + 8 = 62, 33 + 7 = 40, 33 + 8 = 41, 33 + 9 = 42, 42 + 8 = 50, 42 + 9 = 51, 49 + 1 = 50, 49 + 3 = 52, 58 + 2 = 60, 58 + 4 = 62, 67 + 3 = 70, 67 + 5 = 72, 85 + 5 = 90, 85 + 8 = 93.
Eureka-Math-Grade-2-Module-4-Lesson -18- Answer Key-2

Question 1.
28 + 1 = 29.

Answer:
28 + 1 = 29.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
28 + 1 = 29.
29 – 1 = 28.

Question 2.
37 + 2 = 39.

Answer:
37 + 2 = 39.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
37 + 2 = 39.
39 – 2 = 37.

Question 3.
46 + 3 = 49.

Answer:
46 + 3 = 49.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
46 + 3 = 49.
49 – 3 = 46.

Question 4.
55 + 4 = 59.

Answer:
55 + 4 = 59.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
55 + 4 = 59.
59 – 4 = 55.

Question 5.
21 + 8 = 29.

Answer:
21 + 8 = 29.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
21 + 8 = 29.
29 – 8 = 21.

Question 6.
32 + 7 = 39.

Answer:
32 + 7 = 39.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
32 + 7 = 39.
39 – 7 = 32.

Question 7.
43 + 6 = 49.

Answer:
43 + 6 = 49.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
43 + 6 = 49.
49 – 6 = 43.

Question 8.
54 + 5 = 59.

Answer:
54 + 5 = 59.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
54 + 5 = 59.
59 – 5 = 54.

Question 9.
39 + 1 = 40.

Answer:
39 + 1 = 40.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
39 + 1 = 40.
40 – 1 = 39.

Question 10.
39 + 2 = 41.

Answer:
39 + 2 = 41.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
39 + 2 = 41.
41 – 2 = 39.

Question 11.
39 + 3 = 42.

Answer:
39 + 3 = 42.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
39 + 3 = 42.
42 – 3 = 39.

Question 12.
39 + 5 = 44.

Answer:
39 + 5 = 44.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
39 + 5 = 44.
44 – 5 = 39.

Question 13.
48 + 2 = 50.

Answer:
48 + 2 = 50.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
48 + 2 = 50.
50 – 2 = 48.

Question 14.
48 + 3 = 51.

Answer:
48 + 3 = 51.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
48 + 3 = 51.
51 – 3 = 48.

Question 15.
48 + 4 = 52.

Answer:
48 + 4 = 52.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
48 + 4 = 52.
52 – 4 = 48.

Question 16.
48 + 6 = 54.

Answer:
48 + 6 = 54.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
48 + 6 = 54.
54 – 6 = 48.

Question 17.
57 + 3 = 60.

Answer:
57 + 3 = 60.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
57 + 3 = 60.
60 – 3 = 57.

Question 18.
57 + 4 = 61.

Answer:
57 + 4 = 61.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
57 + 4 = 61.
61 – 4 = 57.

Question 19.
57 + 5 = 62.

Answer:
57 + 5 = 62.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
57 + 5 = 62.
62 – 5 = 57.

Question 20.
57 + 7 = 64.

Answer:
57 + 7 = 64.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
57 + 7 = 64.
64 – 7 = 57.

Question 21.
75 + 5 = 80.

Answer:
75 + 5 = 80.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
75 + 5 = 80.
80 – 5 = 75.

Question 22.
75 + 6 = 81.

Answer:
75 + 6 = 81.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
75 + 6 = 81.
81 – 6 = 75.

Question 23.
75 + 7 = 82.

Answer:
75 + 7 = 82.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
75 + 7 = 82.
82 – 7 = 75.

Question 24.
75 + 9 = 84.

Answer:
75 + 9 = 84.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
75 + 9 = 84.
84 – 9 = 75.

Question 25.
66 + 4 = 70.

Answer:
66 + 4 = 70.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
66 + 4 = 70.
70 – 4 = 66.

Question 26.
66 + 5 = 71.

Answer:
66 + 5 = 71.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
66 + 5 = 71.
71 – 5 = 66.

Question 27.
66 + 6 = 72.

Answer:
66 + 6 = 72.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
66 + 6 = 72.
72 – 6 = 66.

Question 28.
66 + 9 = 75.

Answer:
66 + 9 = 75.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
66 + 9 = 75.
75 – 9 = 66.

Question 29.
54 + 6 = 60.

Answer:
54 + 6 = 60.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
54 + 6 = 60.
60 – 6 = 54.

Question 30.
54 + 7 = 61.

Answer:
54 + 7 = 61.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
54 + 7 = 61.
61 – 7 = 54.

Question 31.
54 + 8 = 62.

Answer:
54 + 8 = 62.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
54 + 8 = 62.
62 – 8 = 54.

Question 32.
33 + 7 = 40.

Answer:
33 + 7 = 40.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
33 + 7 = 40.
40 – 7 = 33.

Question 33.
33 + 8 = 41.

Answer:
33 + 8 = 41.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
33 + 8 = 41.
41 – 8 = 33.

Question 34.
33 + 9 = 42.

Answer:
33 + 9 = 42.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
33 + 9 = 42.
42 – 9 = 33.

Question 35.
42 + 8 = 50.

Answer:
42 + 8 = 50.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
42 + 8 = 50.
50 – 8 = 42.

Question 36.
42 + 9 = 51.

Answer:
42 + 9 = 51.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
42 + 9 = 51.
51 – 9 = 42.

Question 37.
49 + 1 = 50.

Answer:
49 + 1 = 50.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
49 + 1 = 50.
50 – 1 = 49.

Question 38.
49 + 3 = 52.

Answer:
49 + 3 = 52.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
49 + 3 = 52.
52 – 3 = 49.

Question 39.
58 + 2 = 60.

Answer:
58 + 2 = 60.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 2 = 60.
60 – 2 = 58.

Question 40.
58 + 4 = 62.

Answer:
58 + 4 = 62.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
58 + 4 = 62.
62 – 4 = 58.

Question 41.
67 + 3 = 70.

Answer:
67 + 3 = 70.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
67 + 3 = 70.
70 – 3 = 67.

Question 42.
67 + 5 = 72.

Answer:
67 + 5 = 72.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
67 + 5 = 72.
72 – 5 = 67.

Question 43.
85 + 5 = 90.

Answer:
85 + 5 = 90.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
85 + 5 = 90.
90 – 5 = 85.

Question 44.
85 + 8 = 93.

Answer:
85 + 8 = 93.

Explanation:
In the above-given question,
given that,
adding the numbers crossing ten.
85 + 8 = 93.
93 – 8 = 85.

Eureka Math Grade 2 Module 4 Lesson 18 Problem Set Answer Key

Question 1.
Solve using your place value chart and place value disks.
a. 80 + 30 = ___110_____                  90 + 40 = __130_______

Answer:
80 + 30 = 110.
90 + 40 = 130.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
8 x 10 = 80.
3 x 10 = 30.
80 + 30 = 110.
9 x 10 = 90.
4 x 10 = 40.
90 + 40 = 130.

b. 73 + 38 = ____111____                  73 + 49 = ____122_____

Answer:
73 + 38 = 111.
73 + 49 = 122.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
7 x 10 = 70.
3 x 1 = 30.
3 x 10 = 30.
8 x 1  = 8.
73 + 38 = 111.
73 + 49 = 122.

c. 93 + 38 = ___131_____                  42 + 99 = ____141_____

Answer:
93 + 38 = 131.
42 + 99 = 141.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
9 x 10 = 90.
3 x 1 = 3.
3 x 10 = 30.
8 x 1 = 8.
90 + 3  = 93.
30 + 8 = 38.
93 + 38 = 131.

d. 84 + 37 = __121______                  69 + 63 = __132_______

Answer:
84 + 37 = 121.
69 + 63 = 132.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
8 x 10 = 80.
4 x 1 = 4.
3 x 10 = 30.
7 x 1 = 7.
80 + 4 = 84.
30 + 7 = 37.
84 + 37 = 121.
69 + 63 = 132.

e. 113 + 78 = ___191_____                 128 + 72 = ____200_____

Answer:
113 + 78 = 191.
128 + 72 = 200.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
1 x 100 = 100.
1 x 10 = 10.
3 x 1 = 3.
100 + 10 + 3 = 113.
7 x 10 = 70.
8 x 1 = 8.
70 + 8 = 78.

Question 2.
Circle the statements that are true as you solve each problem using place value disks.

a. 47 + 123 b. 97 + 54
I change 10 ones for 1 ten. I change 10 ones for 1 ten.
I change 10 tens for 1 hundred. I change 10 tens for 1 hundred.
The total of the two parts is 160. The total of the two parts is 141.
The total of the two parts is 170. The total of the two parts is 151.

Answer:
47 + 123 = 170.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
4 x 10 = 40.
7 x 1 = 7.
40 + 7 = 47.
1 x 100 = 100.
2 x 10 = 20.
3 x 1 = 3.
100 + 20 + 3 = 123.

Question 3.
Write an addition sentence that corresponds to the following number bond.
Solve the problem using your place value disks, and fill in the missing total.
Eureka Math Grade 2 Module 4 Lesson 18 Problem Set Answer Key 3

Answer:
45 + 95 = 140.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
4 x 10 = 40.
5 x 1 = 5.
9 x 10 = 90.
5 x 1 = 5.
40 + 5 = 45.
90 + 5 = 95.
45 + 95 = 140.
Eureka-Math-Grade-2-Module-4-Lesson -18- Answer Key-3

Question 4.
There are 50 girls and 80 boys in the after school program. How many children are in the after school program?

Answer:
The number of children is in the after school program = 130.

Explanation:
In the above-given question,
given that,
There are 50 girls and 80 boys in the after school program.
girls = 50.
boys = 80.
50 + 80 = 130.

Question 5.
Kim and Stacy solved 83 + 39. Kim’s answer was less than 120. Stacy’s answer was more than 120. Whose answer was incorrect? Explain how you know using words, pictures, or numbers.

Answer:
Stacy was correct.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
Kim and Stacy solved 83 + 39 = 122.
Kim’s answer was less than 120.
Stacy’s answer was more than 120.
83 + 39 = 122.
so Stacy was correct.

Eureka Math Grade 2 Module 4 Lesson 18 Exit Ticket Answer Key

Solve using your place value chart and place value disks.

Question 1.
46 + 54 = ____100_____

Answer:
46 + 54 = 100.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
4 x 10 = 40.
6 x 1 = 6.
5 x 10 = 50.
4 x 1 = 4.
40 + 6 = 46.
50 + 4 = 54.
46 + 54 = 100.

Question 2.
49 + 56 = ____105_____

Answer:
49 + 56 = 105.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
4 x 10 = 40.
9 x 1 = 9.
40 + 9 = 49.
5 x 10 = 50.
6 x 1 = 6.
50 + 6 = 56.
49 + 56 = 105.

Question 3.
28 + 63 = ____91_____

Answer:
28 + 63 = 91.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
2 x 10 = 20.
8 x 1 = 8.
20 + 8 = 28.
6 x 10 = 60.
3 x 1 = 3.
60 + 3 = 63.
28 + 63 = 91.

Question 4.
67 + 89 = __156_______

Answer:
67 + 89 = 156.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
6 x 10 = 60.
7 x 1 = 7.
8 x 10 = 80.
9 x 1 = 9.
60 + 7 = 67.
80 + 9 = 89.
67 + 89 = 156.

Eureka Math Grade 2 Module 4 Lesson 18 Homework Answer Key

Question 1.
Solve using your place value chart and place value disks.
a. 20 + 90 = ___110_____                  60 + 70 = ___130______

Answer:
20 + 90 = 110.
60 + 70 = 130.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
2 x 10 = 20.
9 x 10 = 90.
20 + 90 = 110.
6 x 10 = 60.
7 x 10 = 70.
60 + 70 = 130.

b. 29 + 93 = ___122_____                 69 + 72 = __141_______

Answer:
29 + 93 = 122.
69 + 72 = 141.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
2 x 10 = 20.
9 x 1 = 9.
20 + 9 = 29.
9 x 10 = 90.
3 x 1 = 3.
90 + 3 = 93.
29 + 93 = 122.
69 + 72 = 141.

c. 45 + 86 = ____131____                  46 + 96 = ___142______

Answer:
45 + 86 = 131.
46 + 96 = 142.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
4 x 10 = 40.
5 x 1 = 5.
8 x 10 = 80.
6 x 1 = 6.
40 + 5 = 45.
80 + 6 = 86.
45 + 86 = 131.
46 + 96 = 142.

d. 47 + 115 = ___162_____                47 + 95 = ____142_____

Answer:
47 + 115 = 162.
47 + 95 = 142.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
4 x 10 = 40.
7 x 1 = 7.
1 x 100 = 100.
1 x 10 = 10.
5 x 1 = 5.
100 + 10 + 5 = 115.
47 + 115 = 162.

e. 28 + 72 = ____100____                  28 + 72 = ____100_____

Answer:
28 + 72 = 100.
28 + 72 = 100.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
2 x 10 = 20.
8 x 1 = 8.
20 + 8 = 28.
7 x 10 = 70.
2 x 1 = 2.
70 + 2 = 72.
28 + 72 = 100.

Question 2.
Circle the statements that are true as you solve each problem using place value disks.

a. 68  + 51 b. 127 + 46
I change 10 ones for 1 ten. I change 10 ones for 1 ten.
I change 10 tens for 1 hundred. I change 10 tens for 1 hundred.
The total of the two parts is 109. The total of the two parts is 163.
The total of the two parts is 119. The total of the two parts is 173.

Answer:
68 + 51 = 119.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
6 x 10 = 60.
8 x 1 = 8.
5 x 10 = 50.
1 x 1 = 1.
60 + 8 = 68.
50 + 1 = 51.
68 + 51 = 119.

Answer:
127 + 46 = 173.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
1 x 100 = 100.
2 x 10 = 20.
7 x 1 = 7.
100 + 20 + 7 = 127.
4 x 10 = 40.
6 x 1 = 6.
40 + 6 = 46.
127 + 46 = 173.

Question 3.
Solve the problem using your place value disks, and fill in the missing total. Then, write an addition sentence that relates to the number bonds.
a.
Eureka Math Grade 2 Module 4 Lesson 18 Homework Answer Key 4
Addition Sentence:
___86__+__57__=__143_________

Answer:
86 + 57 = 143.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
8 x 10 = 80.
6 x 1 = 6.
80 + 6 = 86.
5 x 10 = 50.
7 x 1 = 7.
50 + 7 = 57.
86 + 57 = 143.
Eureka-Math-Grade-2-Module-4-Lesson -18- Answer Key-4

b.
Eureka Math Grade 2 Module 4 Lesson 18 Homework Answer Key 5
Addition Sentence:
___129__+__78__=__207_________

Answer:
129 + 78 = 207.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
1 x 100 = 100.
2 x 10 = 20.
9 x 1 = 9.
100 + 20 + 9 = 129.
7 x 10 = 70.
8 x 1 = 8.
70 + 8 = 78.
129 + 78 = 207.
Eureka-Math-Grade-2-Module-4-Lesson -18- Answer Key-5

Question 4.
Solve using your place value chart and place value disks.
a. 45 + 55 = ___100_____

Answer:
45 + 55 = 100.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
4 x 10 = 40.
4 x 1 = 4.
5 x 10 = 50.
5 x 1 = 5.
50 + 5 = 55.
40 + 4 = 44.
44 + 55 = 100

b. 78 + 33 = __111______

Answer:
78 + 33 = 111.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
7 x 10 = 70.
8 x 1 = 8.
70 + 8 = 78.
3 x 10 = 30.
3 x 1 = 3.
30 + 3 = 33.
78 + 33 = 111.

c. 37 + 84 = ___121_____

Answer:
37 + 84 = 121.

Explanation:
In the above-given question,
given that,
solve using place value chart and place value disks.
3 x 10 = 30.
7 x 1 = 7.
8 x 10 = 80.
4 x 1 = 4.
30 + 7 = 37.
80 + 4 = 84.
37 + 84 = 121.

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