Page 153 - Basic College Mathematics with Early Integers

130 C HAPTE R 2 I INTEGERS AND INTRODUCTION TO VARIABLES

32. -8 + 2 33. -12 + 3 34. -15 + 5 35. 56 + 1-262 36. 89 + 1-372

37. -37 + 57 38. -25 + 65 39. -42 + 93 40. -64 + 164 41. 34 + 1-672

42. 42 + 1-832 43. 124 + 1-1442 44. 325 + 1-3752 45. -82 + 1-432 46. -56 + 1-332

Add. See Examples 14 and 15.

47. -4 + 2 + 1-52 48. -1 + 5 + 1-82 49. -52 + 1-772 + 1-1172

50. -103 + 1-322 + 1-272 51. 12 + 1-42 + 1-42 + 12 52. 18 + 1-92 + 5 + 1-22

53. 1-102 + 14 + 25 + 1-162 54. 34 + 1-122 + 1-112 + 213

Objective Mixed Practice Add. See Examples 1 through 15.

55. -8 + 1-142 + 1-112 56. -10 + 1-62 + 1-12 57. -26 + 5

58. -35 + 1-122 59. 5 + 1-12 + 17 60. 3 + 1-232 + 6

61. -14 + 1-312 62. -100 + 70 63. 13 + 14 + 1-182

64. 1-452 + 22 + 20 65. -87 + 87 66. -87 + 0

67. -3 + 1-82 + 12 + 1-12 68. -16 + 6 + 1-142 + 1-202

69. 0 + 1-1032 70. 94 + 1-942

Objective Evaluate x + y for the given replacement values. See Examples 16 and 17.
71. x =-20 and y =-50 72. x =-1 and y =-29

Evaluate 3x + y for the given replacement values. See Examples 16 and 17.

73. x = 2 and y =-3 74. x = 7 and y =-11
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75. x = 3 and y =-30 76. x = 13 and y =-17

Objective Translating Translate each phrase; then simplify. See Example 18.

77. Find the sum of -8 and 25. 78. Find the sum of -30 and 10.

79. Find the sum of -31, -9, and 30. 80. Find the sum of -49, -2, and 40.