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Reteach and Skills Practice Workbook

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2–1<br />

Name<br />

Date<br />

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

4AF1.0<br />

Algebra: Addition Properties <strong>and</strong> Subtraction Rules<br />

Complete each number sentence. Identify the property or rule used.<br />

1. (9 + 5) + 3 = 9 + (5 + )<br />

2. + 0 = 5<br />

3. 6 + 4 + = 4 + 6 + 9<br />

4. 9 + = 9<br />

5. (7 + 19) + 3 = + (19 + 3)<br />

6. 8 + 0 =<br />

7. 6 - = 0<br />

8. 36 + 12 + 10 = + 10 + 36<br />

9. + 0 = 8<br />

10. 9 + = 4 + 9<br />

11. 19 - = 19<br />

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

12. (8 + 32) + = 8 + (32 + 4)<br />

Grade 4 20 Chapter 2

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