B Set 100 Form Exercise
01
Estimate 77 - 53 to the nearest ten = ?
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30

02
Estimate 84 + 341 to the nearest 10 = ?
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420

03
About how many: 244 ÷ 8?
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30

04
Round 355 to the nearest hundred = ?
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400

05
Round 450 to the nearest hundred = ?
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500

06
Round 522 to the nearest hundred = ?
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500

07
Round 569 to the nearest hundred = ?
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600

08
About how many: 35 ÷ 2?
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17

09
About how many: 31 ÷ 3?
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10

10
About how many: 29 ÷ 2?
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14

11
Estimate 142 - 13 to the nearest ten = ?
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130

12
Estimate 288 + 285 to the nearest 10 = ?
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580

13
Round 407 to the nearest ten = ?
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410

14
Estimate 302 - 95 to the nearest ten = ?
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200

15
Round 215 to the nearest ten = ?
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220

16
Round 184 to the nearest hundred = ?
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200

17
About how many: 64 ÷ 3?
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21

18
About how many: 80 ÷ 3?
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26

19
Round 482 to the nearest hundred = ?
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500

20
Estimate 324 - 312 to the nearest ten = ?
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10