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miller_prealgebra_2e_ch1_3

Section 2.2 Addition of Integers 99 83. At 6:00 A.M. the temperature was 4F. By noon, the temperature had risen by 12F.What was the temperature at noon? 84. At midnight the temperature was 14F. By noon, the temperature had risen 10F.What was the temperature at noon? 85. Jorge’s checking account is overdrawn. His beginning balance was $56. If he deposits his paycheck for $389, what is his new balance? 86. Ellen’s checking account balance is $23. If she writes a check for $40, what is her new balance? 87. A contestant on Jeopardy scored the following amounts for several questions he answered. Determine his total score. $200, $400, $1000, $400, $600 88. The number of yards gained or lost by a running back in a football game are given. Find the total number of yards. 3, 2, 8, 5, 2, 4, 21 89. Christie Kerr won the U.S. Open Women’s Golf Championship for a recent year. The table gives her scores for the first 9 holes in the first round. Find the sum of the scores. 90. Se Ri Pak tied for fourth place in the U.S. Open Women’s Golf Championship for a recent year. The table gives her scores for the first 9 holes in the first round. Find the sum of the scores. Expanding Your Skills Calculator Connections Hole 1 2 3 4 5 6 7 8 9 Score 0 2 1 1 0 1 1 0 0 Hole 1 2 3 4 5 6 7 8 9 Score 1 1 0 0 1 1 0 0 2 91. Find two integers whose sum is 10. Answers may vary. 92. Find two integers whose sum is 14. Answers may vary. 93. Find two integers whose sum is 2. Answers may vary. 94. Find two integers whose sum is 0. Answers may vary. Topic: Adding Integers on a Calculator To enter negative numbers on a calculator, use the key or the key.To use the key, enter the number the same way that it is written.That is, enter the negative sign first and then the number, such as: 5. If your calculator has the key, type the number first, followed by the key.Thus,5 is entered as: 5 . Try entering the expressions below to determine which method your calculator uses. Expression Keystrokes Result 10 132 10 3 or 10 3 13 4 6 4 6 or 4 6 2 Calculator Exercises For Exercises 95–100, add using a calculator. 95. 302 14222 96. 900 334 97. 23,991 144232 98. 1034 123,2912 99. 23 11252 912 1992 100. 891 12 12232 13412


miller_prealgebra_2e_ch1_3
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