Workbook Detail
Number Sense Estimation Estimate Differences — Set 10
Estimate: 38 − 14 ≈ ?
Show answer
Answer: 30
- Expression
- 38 − 14
- EstimatedAnswer
- 30
- ExactAnswer
- 24
Estimate: 34 − 22 ≈ ?
Show answer
Answer: 10
- Expression
- 34 − 22
- EstimatedAnswer
- 10
- ExactAnswer
- 12
Estimate: 37 − 14 ≈ ?
Show answer
Answer: 30
- Expression
- 37 − 14
- EstimatedAnswer
- 30
- ExactAnswer
- 23
Estimate: 92 − 67 ≈ ?
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Answer: 20
- Expression
- 92 − 67
- EstimatedAnswer
- 20
- ExactAnswer
- 25
Estimate: 23 − 18 ≈ ?
- Expression
- 23 − 18
- EstimatedAnswer
- 0
- ExactAnswer
- 5
Estimate: 78 − 73 ≈ ?
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Answer: 10
- Expression
- 78 − 73
- EstimatedAnswer
- 10
- ExactAnswer
- 5
Estimate: 73 − 12 ≈ ?
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Answer: 60
- Expression
- 73 − 12
- EstimatedAnswer
- 60
- ExactAnswer
- 61
Estimate: 56 − 51 ≈ ?
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Answer: 10
- Expression
- 56 − 51
- EstimatedAnswer
- 10
- ExactAnswer
- 5
Estimate: 38 − 15 ≈ ?
Show answer
Answer: 20
- Expression
- 38 − 15
- EstimatedAnswer
- 20
- ExactAnswer
- 23
Estimate: 52 − 29 ≈ ?
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Answer: 20
- Expression
- 52 − 29
- EstimatedAnswer
- 20
- ExactAnswer
- 23
Estimate: 32 − 24 ≈ ?
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Answer: 10
- Expression
- 32 − 24
- EstimatedAnswer
- 10
- ExactAnswer
- 8
Estimate: 102 − 86 ≈ ?
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Answer: 10
- Expression
- 102 − 86
- EstimatedAnswer
- 10
- ExactAnswer
- 16
Estimate: 75 − 32 ≈ ?
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Answer: 50
- Expression
- 75 − 32
- EstimatedAnswer
- 50
- ExactAnswer
- 43
Estimate: 22 − 20 ≈ ?
- Expression
- 22 − 20
- EstimatedAnswer
- 0
- ExactAnswer
- 2
Estimate: 35 − 28 ≈ ?
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Answer: 10
- Expression
- 35 − 28
- EstimatedAnswer
- 10
- ExactAnswer
- 7
Estimate: 61 − 33 ≈ ?
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Answer: 30
- Expression
- 61 − 33
- EstimatedAnswer
- 30
- ExactAnswer
- 28
Estimate: 47 − 33 ≈ ?
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Answer: 20
- Expression
- 47 − 33
- EstimatedAnswer
- 20
- ExactAnswer
- 14
Estimate: 25 − 24 ≈ ?
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Answer: 10
- Expression
- 25 − 24
- EstimatedAnswer
- 10
- ExactAnswer
- 1
Estimate: 99 − 14 ≈ ?
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Answer: 90
- Expression
- 99 − 14
- EstimatedAnswer
- 90
- ExactAnswer
- 85
Estimate: 105 − 103 ≈ ?
Show answer
Answer: 10
- Expression
- 105 − 103
- EstimatedAnswer
- 10
- ExactAnswer
- 2