Workbook Detail
Number Sense Estimation Estimate Differences — Set 8
Estimate: 32 − 31 ≈ ?
- Expression
- 32 − 31
- EstimatedAnswer
- 0
- ExactAnswer
- 1
Estimate: 30 − 16 ≈ ?
Show answer
Answer: 10
- Expression
- 30 − 16
- EstimatedAnswer
- 10
- ExactAnswer
- 14
Estimate: 97 − 82 ≈ ?
Show answer
Answer: 20
- Expression
- 97 − 82
- EstimatedAnswer
- 20
- ExactAnswer
- 15
Estimate: 75 − 48 ≈ ?
Show answer
Answer: 30
- Expression
- 75 − 48
- EstimatedAnswer
- 30
- ExactAnswer
- 27
Estimate: 62 − 51 ≈ ?
Show answer
Answer: 10
- Expression
- 62 − 51
- EstimatedAnswer
- 10
- ExactAnswer
- 11
Estimate: 60 − 25 ≈ ?
Show answer
Answer: 30
- Expression
- 60 − 25
- EstimatedAnswer
- 30
- ExactAnswer
- 35
Estimate: 35 − 21 ≈ ?
Show answer
Answer: 20
- Expression
- 35 − 21
- EstimatedAnswer
- 20
- ExactAnswer
- 14
Estimate: 104 − 50 ≈ ?
Show answer
Answer: 50
- Expression
- 104 − 50
- EstimatedAnswer
- 50
- ExactAnswer
- 54
Estimate: 75 − 29 ≈ ?
Show answer
Answer: 50
- Expression
- 75 − 29
- EstimatedAnswer
- 50
- ExactAnswer
- 46
Estimate: 21 − 18 ≈ ?
- Expression
- 21 − 18
- EstimatedAnswer
- 0
- ExactAnswer
- 3
Estimate: 88 − 74 ≈ ?
Show answer
Answer: 20
- Expression
- 88 − 74
- EstimatedAnswer
- 20
- ExactAnswer
- 14
Estimate: 62 − 10 ≈ ?
Show answer
Answer: 50
- Expression
- 62 − 10
- EstimatedAnswer
- 50
- ExactAnswer
- 52
Estimate: 61 − 24 ≈ ?
Show answer
Answer: 40
- Expression
- 61 − 24
- EstimatedAnswer
- 40
- ExactAnswer
- 37
Estimate: 33 − 22 ≈ ?
Show answer
Answer: 10
- Expression
- 33 − 22
- EstimatedAnswer
- 10
- ExactAnswer
- 11
Estimate: 85 − 80 ≈ ?
Show answer
Answer: 10
- Expression
- 85 − 80
- EstimatedAnswer
- 10
- ExactAnswer
- 5
Estimate: 25 − 19 ≈ ?
Show answer
Answer: 10
- Expression
- 25 − 19
- EstimatedAnswer
- 10
- ExactAnswer
- 6
Estimate: 63 − 23 ≈ ?
Show answer
Answer: 40
- Expression
- 63 − 23
- EstimatedAnswer
- 40
- ExactAnswer
- 40
Estimate: 50 − 45 ≈ ?
- Expression
- 50 − 45
- EstimatedAnswer
- 0
- ExactAnswer
- 5
Estimate: 66 − 10 ≈ ?
Show answer
Answer: 60
- Expression
- 66 − 10
- EstimatedAnswer
- 60
- ExactAnswer
- 56
Estimate: 49 − 47 ≈ ?
- Expression
- 49 − 47
- EstimatedAnswer
- 0
- ExactAnswer
- 2