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Reteach and Skills Practice Workbook

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2–2<br />

Name<br />

<strong>Skills</strong> <strong>Practice</strong><br />

Date<br />

4NS2.1<br />

Estimate Sums <strong>and</strong> Differences<br />

Round to the nearest ten.<br />

1. 613<br />

+ 187<br />

3. 246<br />

+ 351<br />

Round to the nearest hundred.<br />

5. 891<br />

- 134<br />

7. 437<br />

- 256<br />

2. 783<br />

+ 321<br />

4. 923<br />

+ 118<br />

6. 591<br />

- 214<br />

8. 1,230<br />

- 418<br />

Round to the nearest ten dollars.<br />

9. $17.63 - $12.71<br />

10. $88.24 - $46.68<br />

Round to the nearest thous<strong>and</strong>.<br />

11. 3,736 + 4,179<br />

12. 63,323 + 47,697<br />

Round to the nearest hundred dollars.<br />

13. $116.13 + $278.87<br />

14. $489.88 + $712.03<br />

Round to the nearest thous<strong>and</strong> dollars.<br />

15. $7,351.12 - $4,887.83<br />

16. $8,958.92 - $6,245.45<br />

17. In 1787 Delaware became the first state of the United States.<br />

To the nearest hundred, about how many years ago did<br />

Delaware become a state?<br />

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.<br />

Grade 4 22 Chapter 2

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