Page 177 - Basic College Mathematics with Early Integers

Vocabulary and Readiness Check

Use the choices below to fill in each blank. Not all choices will be used.

average subtraction division -7 - 3112
addition multiplication -7 - 31-12
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1. To simplify -2 , 2 132 , which operation should be performed first?
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2. To simplify -9 - 3 4 , which operation should be performed first?
sum of numbers
3. The of a list of numbers is .
number of numbers
4. To simplify 5[-9 + 1-32] , 4 , which operation should be performed first?
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5. To simplify -2 + 3110 - 122 1-82 , which operation should be performed first?
6. To evaluate x - 3y for x =-7 and y =-1 , replace x with -7 and y with -1 and evaluate .

Identify the bases and exponents of each expression. Do not simplify.

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7. -3 2 8. 1-32 2 9. 4 2 3 10. 9 5 6

5 4 7 # 8 #
11. 1-72 12. -9 13. 5 10 14. 2 11

2.6 Exercise Set FOR EXTRA HELP

Objective Simplify. See Examples 1 through 10.

1. (-4) 3 2. -2 4 3. -4 3 4. (-2) 4

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5. 6 2 2 6. 5 2 3 7. 3 + (-8) , 2 8. -1(-2) + 1
9. 9 - 12 - 4 10. 10 - 23 - 12 11. 4 + 3(-6) 12. -8 + 4(3)

13. 5(-9) + 2 14. 7(-6) + 3 15. (-10) + 4 , 2 16. (-12) + 6 , 3

16 - 13 20 - 15
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17. 6 + 7 3 - 40 18. 5 + 9 4 - 52 19. 20.
-3 -1
24 88
21. 22. 23. 5(-3) - (-12) 24. 7(-4) - (-6)
10 + (-4) -8 - 3
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25. (-19) - 12(3) 26. (-24) - 14(2) 27. -8 + 4 2 28. -12 + 3 3

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2
3
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29. [8 + (-4)] 30. [9 + (-2)] 31. 8 6 - 3 5 + (-20) 32. 7 6 - 6 5 + (-10)
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33. 4 - (-3) 4 34. 20 - (-5) 2 35. ƒ 5 + 3 ƒ 2 3 36. ƒ -3 + 7 ƒ 7 2
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