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Practice Workbook SE - East Penn School District

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Name<br />

LESSON 4.2<br />

Use Parentheses<br />

Choose the expression that shows the given value. Write a or b.<br />

1. 17 2. 10 3. 13<br />

a. (15 2) 4 a. 16 (8 2) a. (72 18) 41<br />

b. 15 (2 4) b. (16 8) 2 b. 72 (18 41)<br />

Show where the parentheses should be placed to make the<br />

expression equal to the given value.<br />

4. 100 8 4; 96 5. 25 4 8; 13 6. 150 65 13; 72<br />

7. 56 24 13; 19 8. 85 25 13; 73 9. 150 25 37; 88<br />

Find the number that gives the expression a value of 25.<br />

10. (15 7) 11. 50 (45 ) 12. (31 ) 11<br />

Mixed Review<br />

13. 19 8 14. 6 7 15. 12 9 <br />

11 8 13 6 3 9 <br />

© Harcourt<br />

Find the missing number.<br />

16. 62 89 17. 14 33 18. 72 46<br />

19. 11 89 20. 44 74 21. 39 106<br />

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

PW17

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