easy Set 5 Form Exercise

Estimate: 79 − 29 ≈ ?

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Answer: 50

Expression
79 − 29
EstimatedAnswer
50
ExactAnswer
50

Estimate: 80 − 57 ≈ ?

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Answer: 20

Expression
80 − 57
EstimatedAnswer
20
ExactAnswer
23

Estimate: 27 − 20 ≈ ?

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Answer: 10

Expression
27 − 20
EstimatedAnswer
10
ExactAnswer
7

Estimate: 95 − 53 ≈ ?

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Answer: 50

Expression
95 − 53
EstimatedAnswer
50
ExactAnswer
42

Estimate: 73 − 68 ≈ ?

Expression
73 − 68
EstimatedAnswer
0
ExactAnswer
5

Estimate: 36 − 20 ≈ ?

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Answer: 20

Expression
36 − 20
EstimatedAnswer
20
ExactAnswer
16

Estimate: 49 − 27 ≈ ?

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Answer: 20

Expression
49 − 27
EstimatedAnswer
20
ExactAnswer
22

Estimate: 37 − 12 ≈ ?

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Answer: 30

Expression
37 − 12
EstimatedAnswer
30
ExactAnswer
25

Estimate: 55 − 31 ≈ ?

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Answer: 30

Expression
55 − 31
EstimatedAnswer
30
ExactAnswer
24

Estimate: 67 − 65 ≈ ?

Expression
67 − 65
EstimatedAnswer
0
ExactAnswer
2

Estimate: 82 − 12 ≈ ?

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Answer: 70

Expression
82 − 12
EstimatedAnswer
70
ExactAnswer
70

Estimate: 88 − 77 ≈ ?

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Answer: 10

Expression
88 − 77
EstimatedAnswer
10
ExactAnswer
11

Estimate: 99 − 78 ≈ ?

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Answer: 20

Expression
99 − 78
EstimatedAnswer
20
ExactAnswer
21

Estimate: 90 − 84 ≈ ?

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Answer: 10

Expression
90 − 84
EstimatedAnswer
10
ExactAnswer
6

Estimate: 27 − 19 ≈ ?

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Answer: 10

Expression
27 − 19
EstimatedAnswer
10
ExactAnswer
8

Estimate: 86 − 46 ≈ ?

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Answer: 40

Expression
86 − 46
EstimatedAnswer
40
ExactAnswer
40

Estimate: 24 − 18 ≈ ?

Expression
24 − 18
EstimatedAnswer
0
ExactAnswer
6

Estimate: 25 − 20 ≈ ?

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Answer: 10

Expression
25 − 20
EstimatedAnswer
10
ExactAnswer
5

Estimate: 24 − 16 ≈ ?

Expression
24 − 16
EstimatedAnswer
0
ExactAnswer
8

Estimate: 107 − 38 ≈ ?

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Answer: 70

Expression
107 − 38
EstimatedAnswer
70
ExactAnswer
69