Workbook Detail
Estimation Challenge Mixed — Set 1
01
About how many: 48 ÷ 5?
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9
02
About how many: 76 ÷ 3?
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25
03
Estimate 89 - 61 to the nearest ten = ?
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30
04
Estimate 73 + 57 to the nearest 10 = ?
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130
05
Round 25 to the nearest ten = ?
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30
06
Estimate 100 + 43 to the nearest 10 = ?
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140
07
Estimate 78 + 70 to the nearest 10 = ?
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150
08
About how many: 109 ÷ 5?
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21
09
Round 101 to the nearest hundred = ?
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100
10
Estimate 99 + 69 to the nearest 10 = ?
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170
11
Estimate 97 - 64 to the nearest ten = ?
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40
12
Estimate 69 - 24 to the nearest ten = ?
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50
13
Round 79 to the nearest ten = ?
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80
14
Estimate 90 + 90 to the nearest 10 = ?
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180
15
Round 91 to the nearest ten = ?
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90
16
Round 35 to the nearest ten = ?
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40
17
Estimate 85 - 31 to the nearest ten = ?
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60