B Set 100 Form Exercise
01
Estimate 178 - 13 to the nearest ten = ?
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170

02
Estimate 226 - 139 to the nearest ten = ?
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90

03
Estimate 166 - 43 to the nearest ten = ?
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130

04
About how many: 76 ÷ 3?
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25

05
About how many: 101 ÷ 4?
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25

06
Round 975 to the nearest ten = ?
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980

07
Round 68 to the nearest ten = ?
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70

08
About how many: 129 ÷ 6?
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21

09
Round 7211 to the nearest hundred = ?
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7200

10
Estimate 425 - 153 to the nearest ten = ?
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280

11
About how many: 145 ÷ 9?
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16

12
Estimate 301 - 135 to the nearest ten = ?
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160

13
Round 793 to the nearest ten = ?
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790

14
Estimate 273 + 390 to the nearest 10 = ?
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660

15
Estimate 431 - 19 to the nearest ten = ?
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410

16
Round 4789 to the nearest hundred = ?
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4800

17
Estimate 397 + 435 to the nearest 10 = ?
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840

18
Estimate 307 - 38 to the nearest ten = ?
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270

19
About how many: 49 ÷ 3?
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16

20
Estimate 462 - 264 to the nearest ten = ?
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200