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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

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.

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

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.

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_____ Â Â Â Â Â Â Â Â Â 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____ Â Â Â Â Â Â Â Â Â 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 1Â = 8.

73 + 38 = 111.

73 + 49 = 122.

c. 93 + 38 = ___131_____ Â Â Â Â Â Â Â Â Â 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 + 3Â = 93.

30 + 8 = 38.

93 + 38 = 131.

d. 84 + 37 = __121______ Â Â Â Â Â Â Â Â Â 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_____ Â Â Â Â Â Â Â Â 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.

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.

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. Kimâ€™s answer was less than 120. Stacyâ€™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_____ Â Â Â Â Â Â Â Â Â 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_____ Â Â Â Â Â Â Â Â 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____ Â Â Â Â Â Â Â Â Â 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_____ Â Â Â Â Â Â Â Â 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____ Â Â Â Â Â Â Â Â Â 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. 68Â + 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.

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.

b.

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.

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.