55) 15 8 a 7 12 b 56) 3 2 a 3 11 b 57) 5 6 a 8 9 b 58) 1 7 a 9 10 b Represent each statement with an addition problem, and solve the problem. 59) Yesterday, LaShonte received her paycheck in the amount of $735.50, and today she spent $258.72 at the shopping mall. How much of her paycheck remains? 60) Paulius received an email from the bank notifying him that his checking account was overdrawn by $132.36. He immediately went online and transferred $150 to his checking account from his savings account. Find the new balance of his checking account. 61) A football team lost 12 yd on the fi rst play and gained 9 yd on the second play. What is their net yardage after these two plays? 62) While James had the fl u, he lost 8 lb. After 1.5 weeks, he gained 5 lb back. What is his net weight gain? Solve each problem. 63) Alma’s 500-GB hard drive had 435 GB of data stored on it. After deleting 283 GB of data, Alma uploads 189 GB of family pictures and videos to the drive. How many gigabytes of storage are available on Alma’s hard drive? 64) Molika made a purchase at a department store in the amount of $135.56. Later that day, she received an email stating that her debit account was overdrawn by $17.56 and was charged an $18 overdraft fee. What is the balance in Molika’s account if she deposits $125 into her account? 65) Alexandria deposited her $750 scholarship check into her debit account, which had a balance of $235.67. Later that week, Alexandria used her debit card to pay her $540 tuition fee and withdrew $300 cash to pay for books and school supplies. What is Alexandria’s new debit account balance? 66) Kapila had $589.36 in his checking account when he deposited his paycheck in the amount of $1782.58. To pay his bills, he wrote checks for $278.25, $78.58, $156.50, and $750. After the checks clear, what is the balance in Kapila’s checking account? Mixed Exercises Add using a number line. 2524 232221 0 1 2 3 4 5 67) 4 9 68) 3 2 Add. 69) 7 15 a 1 10 b 70) 376 (508) 71) 58 21 72) 23.9 195.7 73) 105.3 (34.5) 74) 11 20 a 7 15 b 75) 408 (521) 76) 15 29 77) 351 186 78) 957 (604) Solve each problem. 79) A submarine dives to a depth of 675 ft and then rises 350 ft. Use a signed number to represent the depth of the submarine. 80) On Monday morning, the temperature was 12F. The next morning, the temperature was 17F higher. Use a signed number to represent Tuesday morning’s temperature. R1) Can you think of another way to add signed numbers without using absolute value or a number line? Explain. R2) Where have you encountered the addition of signed numbers this past week? Write a problem explaining the situation, and solve it. 732 CHAPTER 10 Signed Numbers www.mhhe.com/messersmith
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