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MAT 0002 REVIEW SECTION 2.3 (Adding Integers) Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Add the numbers using the number line. 1) 2 + (-3) A) -1 B) -5 C) 5 B) -1 C) 1 D) 9 3) -1 + 0 A) -10 C) -1 B) 0 D) 1 4) -7 + (-10) A) -17 C) 17 B) 0 D) -22 14) -220 + (-280) A) 60 C) -60 B) 500 D) -500 15) -180 + 390 A) -210 C) 210 B) -570 D) 570 16) -90 + 148 A) -58 C) -238 B) 238 D) 58 17) 8.1 + (-5.3) A) -2.8 C) 2.8 B) -13.4 D) 13.4 18) 5.1 + (-12.1) A) -17.2 C) -7 B) 7 D) 17.2 D) 1 2) -5 + 4 A) -9 13) -11 + (-11) A) 22 C) -11 B) -3 D) 3 19) - 5 6 + () 8 48 1 16 A) - 5) 1 + (-7) C) -6 A) -8 Add. B) 6 C) 8 D) -6 20) - 6) 7 + (-9) A) 16 C) -2 B) -16 D) 2 7) -9 + 3 A) -6 C) 6 B) 12 D) -12 B) 77 D) -77 9) -92 + 87 A) 5 C) -179 B) 179 D) -5 10) -8 + 0 A) 8 C) 0 B) -8 D) -80 11) -73 + (-29) A) 102 C) -44 B) 44 D) -102 12) 23 + (-23) A) 46 C) -23 B) 0 D) 23 1 2 18 7 B) 4 7 C) 18 35 D) 4 35 1 7 +4 8 20 21 40 C) - 7 21 40 B) - 7 D) 7 31 40 31 40 6 8 + () 9 72 23) 38 1 D) - A) 21) -12 22) - 3 4 1 5 + 5 7 A) 7 8) 71 + (-6) A) 65 C) -65 B) - A) - 7 9 B) -7 C) - 1 2 D) - 1 18 1 4 + (-35 ) 3 27 A) 3 13 27 B) - 3 5 27 C) 3 5 27 D) - 3 13 27 24) -32 39) A deep-sea diver dives from the surface to 98 feet below the surface. She then dives down 10 more feet. Find the diver's depth. A) -111; 111 ft. below the surface B) -108; 108 ft. below the surface C) -86; 86 ft. below the surface D) -88; 88 ft. below the surface 1 1 + (-34 ) 3 30 A) - 66 C) 66 3 10 B) - 66 3 10 D) 66 25) 11 + (-8) + (-18) A) 21 C) -15 B) 37 D) 1 26) 3 + 5 + (-4) A) 12 C) -6 B) 2 27) -17 + 17 + (-25) A) 9 C) -25 11 30 11 30 40) A deep-sea diver dives from the surface to 131 feet below the surface and then swims up 8 feet, down 18 feet, down another 28 feet, and then up 23 feet. Find the diver's depth after these movements. A) -54; 54 ft below the surface B) -90; 90 ft below the surface C) -162; 162 ft below the surface D) -146; 146 ft below the surface D) 4 B) 25 D) 59 28) -20 + (-2) + (-17) + (-8) A) -3 C) -47 41) The temperature at 4 p.m. on January 1 was -7° Fahrenheit. By 11 p.m. the temperature had risen 10 degrees. Find the temperature at 11 p.m. A) 17°F B) -17°F C) -3°F D) 3°F B) 27 D) -7 29) -6 + (-17) + (-7) + (-13) + 5 + (-3) A) -41 B) -15 C) -51 D) -5 30) 15 + (-21) + 25 + (-22) A) -53 C) -9 42) Scores in golf can be positive or negative integers. For example, a score of 5 over par can be represented by +5 and a score of 4 under par can be represented by -4. If Donna had scores of 1 over par, 4 under par, and 3 under par for three games of golf, what was her total score? A) 8 over par B) 6 over par C) 8 under par D) 6 under par B) 83 D) -3 31) -19 + (-11) + (-7) + (-18) + 1 + (-11) A) -67 B) -13 C) -65 D) -7 43) The difference between a country's exports and imports is called the country's trade balance. If one country had a trade balance of -$91 billion in 1991, $102 billion in 1998, and -$33 billion in 1993. What was the total trade balance for these years? A) -226 billion dollars B) 226 billion dollars C) 22 billion dollars D) -22 billion dollars 32) 2 + (-6) + 2 + (-10) + 18 + (-6) A) -44 B) -4 C) 8 D) 0 Evaluate the expression for the given replacement values. 33) x + y for x = -65, y = 69 A) 4 B) -134 C) 134 D) -4 34) x + y + z A) 12 C) -12 Solve. for x = -16 , y = 11, z = -7 B) -20 D) 34 Solve the problem. 44) The stock market gained 59 points on Tuesday and lost 44 points on Wednesday. It had closed on Monday at 2748 points. Where did the market close on Wednesday? A) 2763 points B) 2733 points C) 2645 points D) 2851 points 35) Find the sum of -15 and 82. A) 67 B) 97 C) -67 D) -97 36) Find the sum of -10 and 70. A) 60 B) -80 C) -60 D) 80 37) Find the sum of -11, -7, and 9. A) -9 B) 13 C) 5 D) 27 38) Find the sum of -7, -22, and 9. A) 38 B) -6 C) 24 D) -20 2 Solve. Solve the problem. 53) Annica owes $650.01 on her charge card. She returns for credit items costing $20.24 and $16.03. She makes a purchase for $22.55 and additional purchases of $39.46, $135.01, and $176.38. She then makes a payment of $533.47. Find the amount she now owes. A) $453.67 B) $773.81 C) $526.21 D) $846.35 45) Herbert, an African elephant living in a zoo, had been sick and lost a lot of weight. He was down to 9291 pounds. The zoo made a special effort to get food into him. The first month of this effort he gained 128 pounds, the second month he gained another 100 pounds, the third month he had a setback and lost 20 pounds, and the fourth month he gained 121 pounds. What was Herbert's total weight gain or loss in these four months? A) gain of 329 pounds B) gain of 384 pounds C) 9620 pounds D) gain of 369 pounds Determine whether the statement is true or false. 54) The sum of zero and a negative number is always a positive number. A) True B) False 46) Meredith got a monthly cable bill for a base rate of $18.50 , an additional $5.10 for a package of movie channels, a charge of $2.36 for taxes, and a credit of $16.60 to make up for a billing error the previous month. How much was the cable bill? A) $9.36 B) $42.56 C) $45.56 D) $7.36 The bar graph below shows the yearly net income for Widgets, LTD. 47) What was the net income (in dollars) for Widgets, LTD in 2000? A) -$256,000 B) $256 C) -$256 D) $256,000 48) Find the total net income for years 1999 and 2000. A) $580,000 B) $68 C) -$68 D) -$580,000 49) Find the total net income for all years shown. A) $258,000 B) $109,000 C) $447,000 D) -$40,000 Determine whether the statement is true or false. 50) The sum of two negative numbers is always a negative number. A) True B) False 51) The sum of a positive number and a negative number is always a positive number. A) True B) False 52) The sum of zero and a negative number is always a negative number. A) True B) False 3