B Set 98 Form Exercise
01
Round 105 to the nearest ten = ?
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110

02
Estimate 97 + 223 to the nearest 10 = ?
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320

03
Estimate 186 - 63 to the nearest ten = ?
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130

04
Round 368 to the nearest hundred = ?
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400

05
Estimate 342 + 273 to the nearest 10 = ?
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610

06
Round 724 to the nearest hundred = ?
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700

07
Round 606 to the nearest hundred = ?
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600

08
Estimate 154 + 468 to the nearest 10 = ?
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620

09
About how many: 21 ÷ 4?
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5

10
Round 569 to the nearest ten = ?
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570

11
Round 342 to the nearest hundred = ?
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300

12
Estimate 65 + 229 to the nearest 10 = ?
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300

13
Estimate 259 + 24 to the nearest 10 = ?
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280

14
Estimate 117 + 290 to the nearest 10 = ?
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410

15
Round 243 to the nearest hundred = ?
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200

16
Estimate 318 + 15 to the nearest 10 = ?
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340

17
Round 779 to the nearest hundred = ?
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800

18
Round 506 to the nearest hundred = ?
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500

19
About how many: 235 ÷ 9?
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26

20
About how many: 170 ÷ 6?
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28