Download Review pages 59-61

Review pages 59-61
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The ordered pair (0,0) represents the location of the ORIGIN.
A letter that stands for a number in an expression is a VARIABLE.
The vertical axis in the coordinate plane is known as the Y-AXIS.
The coordinate plane is divided into four QUADRANTS.
All whole numbers and their opposites are INTEGERS.
In the ordered pair (-5, 2), the number -5 is the X-COORDINATE.
The distance that a number is from zero on a number line is the ABSOLUTE VALUE of the number.
x – 25
8. twenty-five less than x
10. ten decreased by t
9. the product of n and 3
t – 10
12. a number n increased by 5
11. a number x divided by 4
3n
x
4
n+5
14. 3 • 7 + 6 ÷ 2
15. (4 + 8) ÷ 2 • 2
16. 9 • 5 – 4(12 ÷ 6)
17. 3x + 4, for x = 5
18. 15 + 10 ÷ n, for n = 5
19. (y – 6)2, for y = 16
20. 4(4 + m), for m = 6
21. 15t • 10, for t = 3
22. z = [15 – (z – 1)], for z = 4
23. the opposite of 17 = -17
25. the absolute value of negative 9 = 9
27.
-7 > -9
28.
0 > -3
24. |-1,000| = 1,000
26. opposite of the absolute value of 12 = -12
29.
-6 < 2
30.
|-5| = |5|
31. A slide at a water park is 30 ft high. What integer represents your change in elevation
when you go down the slide? -30
32. 8 + (-15)
33. -9 + 21
34. 9 – (-5)
35. 14 + (-9) + (-20)
36. -62 – (-59) – 24
38. -4 + 12 + (-3) + (-6)
39.
37. -7 – 4
An eagle leaves her nest on the side of a cliff. She soars
upward 60 ft and then dives 80 ft. What is her change in
elevation after leaving the nest?
40. 0, 6, 12, 18, … Start with 0. Add 6 repeatedly. The next three numbers are 24, 30, 36.
41. -18, -9, 0, 9, … Start with -18 and add 9 repeatedly. The next three numbers are 18,27,36.
42. ½, 1, 1½, 2, …Start with ½ and add ½ repeatedly. The next three numbers are 2½, 3, 3½.
43. Suppose you plan to save $12 per week. You have already saved $7.50. In how many weeks
will you have saved at least $100?
44. A four-line classified ad costs $28 for a week. Each additional line costs $10.50. What is the
weekly cost of a 12-line ad?
45. 7(-6)
46. 250 ÷ (-50)
47. (-9)(-8)
48. -56 ÷ (-8)
49. -120 ÷ 40
50. -15(11)
51. -64/8
52. (-5)(-7)
53. (-6)(-17)
54. A
56. C
55. B
57. D