## Engage NY Eureka Math 2nd Grade Module 5 Lesson 17 Answer Key

### Eureka Math Grade 2 Module 5 Lesson 17 Sprint Answer Key

A. Subtract Crossing the Ten

10 – 1 = 9, 10 – 2 = 8, 20 – 2 = 18, 40 – 2 = 38, 10 – 2 = 8, 11 – 2 = 9, 21 – 2 = 19, 51 – 2 = 49, 10 – 3 = 7, 11 – 3 = 8, 21 – 3 = 18, 61 – 3 = 58, 10 – 4 = 6, 11 – 4 = 7, 21 – 4 = 17, 71 – 4 = 67, 10 – 5 = 5, 11 – 5 = 6, 21 – 5 = 16, 81 – 5 = 76, 10 – 6 = 4, 11 – 6 = 5, 21 – 6 = 15, 91 – 6 = 85, 10 – 7 = 3, 11 – 7 = 4, 31 – 7 = 24, 10 – 8 = 2, 11 – 8 = 3, 41 – 8 = 33, 10 – 9 = 1, 11 – 9 = 2, 51 – 9 = 42, 12 – 3 = 9, 82 – 3 = 79, 13 – 5 = 8, 73 – 5 = 68, 14 – 6 = 8, 84 – 6 = 78, 15 – 8 = 7, 95 – 8 = 87, 16 – 7 = 9, 46 – 7 = 39, 68 – 9 = 59.

Explanation:
In the above-given question,
given that,
subtract crossing the ten.
10 – 1 = 9, 10 – 2 = 8, 20 – 2 = 18, 40 – 2 = 38, 10 – 2 = 8, 11 – 2 = 9, 21 – 2 = 19, 51 – 2 = 49, 10 – 3 = 7, 11 – 3 = 8, 21 – 3 = 18, 61 – 3 = 58, 10 – 4 = 6, 11 – 4 = 7, 21 – 4 = 17, 71 – 4 = 67, 10 – 5 = 5, 11 – 5 = 6, 21 – 5 = 16, 81 – 5 = 76, 10 – 6 = 4, 11 – 6 = 5, 21 – 6 = 15, 91 – 6 = 85, 10 – 7 = 3, 11 – 7 = 4, 31 – 7 = 24, 10 – 8 = 2, 11 – 8 = 3, 41 – 8 = 33, 10 – 9 = 1, 11 – 9 = 2, 51 – 9 = 42, 12 – 3 = 9, 82 – 3 = 79, 13 – 5 = 8, 73 – 5 = 68, 14 – 6 = 8, 84 – 6 = 78, 15 – 8 = 7, 95 – 8 = 87, 16 – 7 = 9, 46 – 7 = 39, 68 – 9 = 59.

Question 1.
10 – 1 =

10 – 1 = 9.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 1 = 9.
9 + 1 = 10.

Question 2.
10 – 2 =

10 – 2 = 8.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 2 = 8.
8 + 2 = 10.

Question 3.
20 – 2 =

20 – 2 = 18.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
20 – 2 = 18.
18 + 2 = 20.

Question 4.
40 – 2 =

40 – 2 = 38.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
40 – 2 = 38.
38 + 2 = 40.

Question 5.
10 – 2 =

10 – 2 = 8.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 2 = 8.
8 + 2 = 10.

Question 6.
11 – 2 =

11 – 2 = 9.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
11 – 2 = 9.
9 + 2 = 11.

Question 7.
21 – 2 =

21 – 2 = 19.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
21 – 2 = 19.
19 + 2 = 21.

Question 8.
51 – 2 =

51 – 2 = 49.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
51 – 2 = 49.
49 + 2 = 51.

Question 9.
10 – 3 =

10 – 3 = 7.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 3 = 7.
7 + 3 = 10.

Question 10.
11 – 3 =

11 – 3 = 8.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
11 – 3 = 8.
8 + 3 = 11.

Question 11.
21 – 3 =

21 – 3 = 18.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
21 – 3 = 18.
18 + 3 = 21.

Question 12.
61 – 3 =

61 – 3 = 58.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
61 – 3 = 58.
58 + 3 = 61.

Question 13.
10 – 4 =

10 – 4 = 6.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 4 = 6.
6 + 4 = 10.

Question 14.
11 – 4 =

10 – 1 = 9.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 1 = 9.
9 + 1 = 10.

Question 15.
21 – 4 =

21 – 4 = 17.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
21 – 4 = 17.
17 + 4 = 21.

Question 16.
71 – 4 =

71 – 4 = 68.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
71 – 4 = 68.
68 + 4 = 71.

Question 17.
10 – 5 =

10 – 5 = 5.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 5 = 5.
5 + 5 = 10.

Question 18.
11 – 5 =

11 – 5 = 6.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
11 – 5 = 6.
6 + 5 = 11.

Question 19.
21 – 5 =

21 – 5 = 16.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
21 – 5 = 16.
16 + 5 = 21.

Question 20.
81 – 5 =

81 – 5 = 76.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
81 – 5 = 76.
76 + 5 = 81.

Question 21.
10 – 6 = 4.

10 – 6 = 4.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 6 = 4.
4 + 6 = 10.

Question 22.
11 – 6 =

11 – 6 = 5.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
11 – 6 = 5.
5 + 6 = 11.

Question 23.
21 – 6 =

21 – 6 = 15.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
21 – 6 = 15.
15 + 6 = 21.

Question 24.
91 – 6 =

91 – 6 = 85.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
91 – 6 = 85.
85 + 6 = 91.

Question 25.
10 – 7 =

10 – 7 = 3.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 7 = 3.
3 + 7 = 10.

Question 26.
11 – 7 =

11 – 7 = 4.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
11 – 7 = 4.
4 + 7 = 11.

Question 27.
31 – 7 =

31 – 7 = 25.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
31 – 7 = 25.
25 + 7 = 31.

Question 28.
10 – 8 =

10 – 8 = 2.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 8 = 2.
2 + 8 = 10.

Question 29.
11 – 8 =

11 – 8 = 3.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
11 – 8 = 3.
3 + 8 = 11.

Question 30.
41 – 8 =

41 – 8 = 33.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
41 – 8 = 33.
33 + 8 = 41.

Question 31.
10 – 9 =

10 – 9 = 1.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
10 – 9 = 1.
9 + 1 = 10.

Question 32.
11 – 9 =

11 – 9 = 2.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
11 – 9 = 2.
2 + 9 = 11.

Question 33.
51 – 9 =

51 – 9 = 42.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
51 – 9 = 42.
42 + 9 = 51.

Question 34.
12 – 3 =

12 – 3 = 9.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
12 – 3 = 9.
9 + 3 = 12.

Question 35.
82 – 3 =

82 – 3 = 79.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
82 – 3 = 79.
79 + 3 = 82.

Question 36.
13 – 5 =

13 – 5 = 8.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
13 – 5 = 8.
8 + 5 = 13.

Question 37.
73 – 5 =

73 – 5 = 68.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
73 – 5 = 68.
68 + 5 = 73.

Question 38.
14 – 6 =

14 – 6 = 8.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
14 – 6 = 8.
8 + 6 = 14.

Question 39.
84 – 6 =

84 – 6 = 78.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
84 – 6 = 78.
78 + 6 = 84.

Question 40.
15 – 8 =

15 – 8 = 7.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
15 – 8 = 7.
7 + 8 = 15.

Question 41.
95 – 8 =

95 – 8 = 87.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
95 – 8 = 87.
87 + 8 = 95.

Question 42.
16 – 7 =

16 – 7 = 9.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
16 – 7 = 9.
9 + 7 = 16.

Question 43.
46 – 7 =

46 – 7 = 9.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
46 – 7 = 9.
9 + 7 = 46.

Question 44.
68 – 9 =

68 – 9 = 57.

Explanation:
In the above-given question,
given that,
subtraction of two numbers.
68 – 9 = 57.
57 + 9 = 68.

B. Subtract Crossing the Ten

10 – 2 = 8, 20 – 2 = 18, 30 – 2 = 28, 50 – 2 = 48, 10 – 2 = 8, 11 – 2 = 9, 21 – 2 = 19, 61 – 2 = 59, 10 – 3 = 7, 11 – 3 = 8, 21 – 3 = 18, 71 – 3 = 68, 10 – 4 = 6, 11 – 4 = 7, 21 – 4 = 17, 81 – 4 = 77, 10 – 5 = 5, 11 – 5 = 6, 21 – 5 = 16, 91 – 5 = 86, 10 – 6 = 4, 11 – 6 = 5, 21 – 6 = 15, 41 – 6 = 35, 10 – 7 = 3, 11 – 7 = 4, 51 – 7 = 44, 10 – 8 = 2, 11 – 8 = 3, 61 – 8 = 53, 10 – 9 = 1, 11 – 9 = 3, 31 – 9 = 22, 12 – 3 = 9, 92 – 3 = 89, 13 – 5 = 8, 43 – 5 = 38, 14 – 6 = 8, 64 – 6 = 58, 15 – 8 = 7, 85 – 8 = 77, 16 – 7 = 9, 76 – 7 = 69, 58 – 9 = 49.

Explanation:
In the above-given question,
given that,
subtract crossing the ten.
10 – 2 = 8, 20 – 2 = 18, 30 – 2 = 28, 50 – 2 = 48, 10 – 2 = 8, 11 – 2 = 9, 21 – 2 = 19, 61 – 2 = 59, 10 – 3 = 7, 11 – 3 = 8, 21 – 3 = 18, 71 – 3 = 68, 10 – 4 = 6, 11 – 4 = 7, 21 – 4 = 17, 81 – 4 = 77, 10 – 5 = 5, 11 – 5 = 6, 21 – 5 = 16, 91 – 5 = 86, 10 – 6 = 4, 11 – 6 = 5, 21 – 6 = 15, 41 – 6 = 35, 10 – 7 = 3, 11 – 7 = 4, 51 – 7 = 44, 10 – 8 = 2, 11 – 8 = 3, 61 – 8 = 53, 10 – 9 = 1, 11 – 9 = 3, 31 – 9 = 22, 12 – 3 = 9, 92 – 3 = 89, 13 – 5 = 8, 43 – 5 = 38, 14 – 6 = 8, 64 – 6 = 58, 15 – 8 = 7, 85 – 8 = 77, 16 – 7 = 9, 76 – 7 = 69, 58 – 9 = 49.

Question 1.
10 – 2 =

10 – 2 = 8.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 2 = 8.
8 + 2 = 10.

Question 2.
20 – 2 =

20 – 2 = 18.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
20 – 2 = 18.
18 + 2 = 20.

Question 3.
30 – 2 =

30 – 2 = 28.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
30 – 2 = 28.
28 + 2 = 30.

Question 4.
50 – 2 =

50 – 2 = 48.

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

Question 5.
10 – 2 =

10 – 2 = 8.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 2 = 8.
8 + 2 = 10.

Question 6.
11 – 2 =

11 – 2 = 9.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 2 = 9.
9 + 2 = 11.

Question 7.
21 – 2 =

21 – 2 = 19.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
21 – 2 = 19.
19 + 2 = 21.

Question 8.
61 – 2 =

61 – 2 = 59.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
61 – 2 = 59.
59 + 2 = 61.

Question 9.
10 – 3 =

10 – 3 = 7.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 3 = 7.
7 + 3 = 10.

Question 10.
11 – 3 =

11 – 3 = 8.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 3 = 8.
8 + 3 = 11.

Question 11.
21 – 3 =

21 – 3 = 18.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
21 – 3 = 18.
18 + 3 = 21.

Question 12.
71 – 3 =

71 – 3 = 68.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
71 – 3 = 68.
68 + 3 = 71.

Question 13.
10 – 4 =

10 – 4 = 6.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 4 = 6.
6 + 4 = 10.

Question 14.
11 – 4 =

11 – 4 = 7.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 4 = 7.
7 + 4 = 11.

Question 15.
21 – 4 =

21 – 4 = 17.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
21 – 4 = 17.
17 + 4 = 21.

Question 16.
81 – 4 =

81 – 4 = 77.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
81 – 4 = 77.
77 + 4 = 81.

Question 17.
10 – 5 =

10 – 5 = 5.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 5 = 5.
5 + 5 = 10.

Question 18.
11 – 5 =

11 – 5 = 6.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 5 = 6.
6 + 5 = 11.

Question 19.
21 – 5 =

21 – 5 = 16.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
21 – 5 = 16.
16 + 5 = 21.

Question 20.
91 – 5 =

91 – 5 = 86.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
91 – 5 = 86.
86 + 5 = 91.

Question 21.
10 – 6 =

10 – 6 = 4.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 6 = 4.
4 + 6 = 10.

Question 22.
11 – 6 =

11 – 6 = 5.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 6 = 5.
5 + 6 = 11.

Question 23.
21 – 6 =

21 – 6 = 15.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
21 – 6 = 15.
15 + 6 = 21.

Question 24.
41 – 6 =

41 – 6 = 35.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
41 – 6 = 35.
35 + 6 = 41.

Question 25.
10 – 7 =

10 – 7 = 3.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 7 = 3.
3 + 7 = 10.

Question 26.
11 – 7 =

11 – 7 = 4.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 7 = 4.
4 + 7 = 11.

Question 27.
51 – 7 =

51 – 7 = 44.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
51 – 7 = 44.
44 + 7 = 51.

Question 28.
10 – 8 =

10 – 8 = 2.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 8 = 2.
2 + 8 = 10.

Question 29.
11 – 8 =

11 – 8 = 3.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 8 = 3.
3 + 8 = 11.

Question 30.
61 – 8 =

61 – 8 = 53.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
61 – 8 = 53.
53 + 8 = 61.

Question 31.
10 – 9 =

10 – 9 = 1.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 9 = 1.
1 + 9 = 10.

Question 32.
11 – 9 =

11 – 9 = 2.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
11 – 9 = 2.
2 + 8 = 11.

Question 33.
31 – 9 =

31 – 9 = 22.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
31 – 9 = 22.
22 + 9 = 31.

Question 34.
12 – 3 =

12 – 3 = 9.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
12 – 3 = 9.
9 + 3 = 12.

Question 35.
92 – 3 =

10 – 2 = 8.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
10 – 2 = 8.
8 + 2 = 10.

Question 36.
13 – 5 =

13 – 5 = 8.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
13 – 5 = 8.
8 + 5 = 13.

Question 37.
43 – 5 =

43 – 5 = 38.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
43 – 5 = 38.
38 + 5 = 43.

Question 38.
14 – 6 =

14 – 6 = 8.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
14 – 6 = 8.
8 + 6 = 14.

Question 39.
64 – 6 =

64 – 6 = 58.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
64 – 6 = 58.
58 + 6 = 64.

Question 40.
15 – 8 =

15 – 8 = 7.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
15 – 8 = 7.
7 + 8 = 15.

Question 41.
85 – 8 =

85 – 8 = 77.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
85 – 8 = 77.
77 + 8 = 85.

Question 42.
16 – 7 =

16 – 7 = 9.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
16 – 7 = 9.
9 + 7 = 16.

Question 43.
76 – 7 =

76 – 7 = 69.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
76 – 7 = 69.
69 + 7 = 76.

Question 44.
58 – 9 =

58 – 9 = 49.

Explanation:
In the above-given question,
given that,
subtraction crossing the ten.
58 – 9 = 49.
49 + 9 = 58.

### Eureka Math Grade 2 Module 5 Lesson 17 Problem Set Answer Key

Question 1.
Solve vertically or using mental math. Draw chips on the place value chart and unbundle, if needed.
a. 200 – 113 = __________

200 – 113 = 87.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
200 – 113.
2 hundred = 200.
1 hundred = 100.
1 ten = 10.
3 ones = 3.
100 + 10 + 3 = 113.
200 – 113 = 87.

b. 400 – 247 = __________

400 – 247 = 153.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
4 hundred = 400.
2 hundred = 200.
4 tens = 40.
7 ones = 7.
200 + 40 + 7 = 247.
400 – 247 = 153.

c. 700 – 428 = __________

700 – 428 = 272.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
700 – 428.
7 hundred = 700.
4 hundred = 400.
2 ten = 20.
8 ones = 8.
400 + 20 + 8 = 428.
700 – 428 = 272.

d. 800 – 606 = __________

800 – 606 = 194.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
800 – 606.
8 hundred = 800.
6 hundred = 600.
6 ones = 6.
600 + 6 = 606.
800 – 606 = 194.

e. 901 – 404 = __________

901 – 404 = 497.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
901 – 404.
9 hundred = 900.
1 ones = 1.
900 + 1 = 901.
4 hundred = 400.
4 ones = 4.
400 + 4 = 404.
901 – 404 = 497.

Question 2.

 Solution: Check:

600 – 367 = 233.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
600 – 367.
6 hundred = 600.
3 hundred = 300.
6 tens = 60.
7 ones = 7.
300 + 60 + 7 = 367.
600 – 367 = 233.

### Eureka Math Grade 2 Module 5 Lesson 17 Exit Ticket Answer Key

Solve vertically or using mental math. Draw chips on the place value chart and unbundle, if needed.

Question 1.
600 – 432 = __________

600 – 432 = 168.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
600 – 432.
6 hundred = 600.
4 hundred = 400.
3 tens = 30.
2 ones = 2.
400 + 30 + 2 = 432.
600 – 432 = 168.

Question 2.
303 – 254 = __________

303 – 254 = 46.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
303 – 254.
3 hundred = 300.
2 hundred = 200.
5 tens = 50.
4 ones = 4.
200 + 50 + 4 = 254.
303 – 254 = 46.

### Eureka Math Grade 2 Module 5 Lesson 17 Homework Answer Key

Question 1.
Solve vertically or using mental math. Draw chips on the place value chart and unbundle, if needed.
a. 200 – 123 = __________

200 – 123 = 77.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
200 – 123.
2 hundred = 200.
1 hundred = 100.
2 tens = 20.
3 ones = 3.
100 + 20 + 3 = 123.
200 – 123 = 77.

b. 400 – 219 = __________

400 – 219 = 181.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
400 – 219.
4 hundred = 400.
2 hundred = 200.
1 ten = 10.
9 ones = 9.
200 + 10 + 9 = 219.
400 – 219 = 181.

c. 700 – 542 = __________

700 -542 = 158.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
700 – 542.
7 hundred = 700.
5 hundred = 500.
4 tens = 40.
2 ones = 2.
500 + 40 + 2 = 542.
700 – 542 = 158.

d. 800 – 409 = __________

800 – 409 = 301.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
800 – 409.
8 hundred = 800.
4 hundred = 400.
9 ones = 9.
400 + 9 = 409.
800 – 409 = 301.

e. 905 – 606 = __________

905 – 606 = 299.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
905 – 606.
9 hundred = 900.
5 ones = 5.
900 + 5 = 905.
6 hundred = 600.
6 ones = 6.
600 + 6 = 606.
905 – 606 = 299.

Question 2.

 Solution: Check:

800 – 567 = 233.

Explanation:
In the above-given question,
given that,
solve vertically or using mental math.
draw chips on the place value chart.
800 – 567.
8 hundred = 800.
5 hundred = 500.
6 tens = 60.
7 ones = 7.
500 + 60 + 7 = 567.
800 – 567 = 233.