easy Set 1 Form Exercise

Estimate: 104 − 27 ≈ ?

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Answer: 70

Expression
104 − 27
EstimatedAnswer
70
ExactAnswer
77

Estimate: 46 − 19 ≈ ?

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Answer: 30

Expression
46 − 19
EstimatedAnswer
30
ExactAnswer
27

Estimate: 40 − 19 ≈ ?

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Answer: 20

Expression
40 − 19
EstimatedAnswer
20
ExactAnswer
21

Estimate: 54 − 53 ≈ ?

Expression
54 − 53
EstimatedAnswer
0
ExactAnswer
1

Estimate: 78 − 31 ≈ ?

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Answer: 50

Expression
78 − 31
EstimatedAnswer
50
ExactAnswer
47

Estimate: 75 − 70 ≈ ?

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Answer: 10

Expression
75 − 70
EstimatedAnswer
10
ExactAnswer
5

Estimate: 82 − 51 ≈ ?

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Answer: 30

Expression
82 − 51
EstimatedAnswer
30
ExactAnswer
31

Estimate: 59 − 24 ≈ ?

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Answer: 40

Expression
59 − 24
EstimatedAnswer
40
ExactAnswer
35

Estimate: 56 − 42 ≈ ?

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Answer: 20

Expression
56 − 42
EstimatedAnswer
20
ExactAnswer
14

Estimate: 38 − 37 ≈ ?

Expression
38 − 37
EstimatedAnswer
0
ExactAnswer
1

Estimate: 107 − 65 ≈ ?

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Answer: 40

Expression
107 − 65
EstimatedAnswer
40
ExactAnswer
42

Estimate: 62 − 19 ≈ ?

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Answer: 40

Expression
62 − 19
EstimatedAnswer
40
ExactAnswer
43

Estimate: 101 − 48 ≈ ?

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Answer: 50

Expression
101 − 48
EstimatedAnswer
50
ExactAnswer
53

Estimate: 60 − 43 ≈ ?

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Answer: 20

Expression
60 − 43
EstimatedAnswer
20
ExactAnswer
17

Estimate: 62 − 37 ≈ ?

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Answer: 20

Expression
62 − 37
EstimatedAnswer
20
ExactAnswer
25

Estimate: 28 − 15 ≈ ?

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Answer: 10

Expression
28 − 15
EstimatedAnswer
10
ExactAnswer
13

Estimate: 104 − 77 ≈ ?

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Answer: 20

Expression
104 − 77
EstimatedAnswer
20
ExactAnswer
27

Estimate: 29 − 28 ≈ ?

Expression
29 − 28
EstimatedAnswer
0
ExactAnswer
1

Estimate: 86 − 41 ≈ ?

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Answer: 50

Expression
86 − 41
EstimatedAnswer
50
ExactAnswer
45

Estimate: 65 − 53 ≈ ?

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Answer: 20

Expression
65 − 53
EstimatedAnswer
20
ExactAnswer
12