Page 78 - Basic College Mathematics with Early Integers

Vocabulary and Readiness Check

Use the choices below to fill in each blank.

area grouping commutative 1 product length
factor order associative 0 distributive number
1. The product of 0 and any number is .
2. The product of 1 and any number is the .
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3. In 8 12 = 96 , the 96 is called the and 8 and 12 are each called a(n) .
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4. Since 9 10 = 10 9 , we say that changing the in multiplication does not change the product.
This property is called the property of multiplication.
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5. Since (3 4) 6 = 3 (4 6) , we say that changing the in multiplication does not change the product.
This property is called the property of multiplication.
6. measures the amount of surface of a region.
7. Area of a rectangle = # width.
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8. We know 9 (10 + 8) = 9 10 + 9 8 by the property.

1.6 Exercise Set FOR EXTRA HELP

Objective Multiply. See Example 1.

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1. 1 24 2. 55 1 3. 0 19 4. 27 0
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5. 8 0 9 6. 7 6 0 7. 87 1 8. 1 41
Use the distributive property to rewrite each expression. See Example 2.
9. 6(3 + 8) 10. 5(8 + 2) 11. 4(3 + 9)

12. 6(1 + 4) 13. 20(14 + 6) 14. 12(12 + 3)

Objective Multiply. See Example 3.

15. 64 16. 79 17. 613 18. 638
* 8 * 3 * 6 * 5

19. 277 * 6 20. 882 * 2 21. 1074 * 6 22. 9021 * 3

Objectives Mixed Practice Multiply. See Examples 1 through 5.

23. 89 24. 91 25. 421 26. 526 27. 306 28. 708
* 13 * 72 * 58 * 23 * 81 * 21

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