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Name _________________________________ Day 30: Unit 1 Test #2 Review NO CALCULATORS! 1.) Date ______________ Review Define integers. __________________________________________________________________________ 2.) Define rational numbers. __________________________________________________________________________ 3.) 4.) Which of the following is not a synonym for the others? A opposite B additive inverse C absolute value D zero pair Which set of integers is in order from least to greatest? -10 , 8, -5 A C 5.) -10 -10 8, -5, -10 , -5, 8 D Which of the following is not an example of an integer? A 6.) -5, 8, B 0 B -0.25 What is the additive inverse of 11? C 3 D -5 __________ #7-8 Write an integer to represent each of the following. 7.) a deposit of $40 __________ 8.) 17 feet below sea level _________ #9-10 Evaluate each of the following expressions. 9.) 11.) -18 __________ 10.) 6 + (-8) __________ Which addition equation is modeled on the number line below? A 4 + (-2) = 2 B 4 + 6 = 10 C 4 + (-6) = 2 D -4 + (-6) = -10 TURN OVER 12.) If there is an even number of negatives, the product will be ______________. 13.) If there is an odd number of negatives, the product will be ______________. #14-29 Solve each of the following problems. Write your final answer on the line provided. 14.) 12 + (-5) = __________ 15.) 8 - 14 = __________ 16.) -14 - (-6) = __________ 17.) -11 + (-5) = __________ 18.) -1.9 – (-0.8) = __________ 19.) -1.8 + (-2.3) = __________ 20.) -6 3 + -1 = __________ 10 10 21.) -5 -3 = __________ 8 4 22.) 8 (-4) = __________ 23.) -36 = __________ -4 24.) -72 25.) -4 (-12) = __________ 26.) -6.3 x -0.6 = __________ 27.) -4.2 ÷ 0.3 = __________ 28.) -1 -4 = __________ 2 9 29.) -1 ÷ 9 = __________ 1 3 -3 = __________ 5 #30-31 Simplify the following. 30.) -42 = __________ 31.) (-5)2 = _________ 32.) a.) Convert b.) 1 to a decimal using long division. Show your work. 3 Is this an example of a terminating or repeating decimal? _______________ 33.) Your bank account balance is -$30.65. You deposit $15.45. What is your new balance? Show your work. 34.) Mary’s grade will change 35.) Marco gained 5 pounds over the summer. He lost 7 pounds and then gained 3 pounds over the holidays. What was Marco’s total change in weight? Show your work. 36.) The temperature falls from 10F to -3F. What is the difference in temperatures? Show your work. -3 of a point for every question she answers incorrectly. If she gets 2 5 questions wrong, how much will her grade change? Show your work. TURN OVER 37.) Marco set the clock in this kitchen to the correct time on Wednesday. Exactly one day later, he finds that his clock lost 2 minutes. If his clock continues to lose time at this rate, what will be the overall change in time after 6 days? Show your work. 38.) Simplify the following expression. 32 [5 - (-3)] Name _________________________________ Day 30: Unit 1 Test #2 Review Date ______________ Review DO NOW 1. A fraction is undefined when _______________________. a: c: the numerator is zero the quotient is negative b: d: the denominator is zero the quotient is a fraction 1. The MULTIPLICATIVE INVERSE of -9 is _________________. 2. The ADDITIVE INVERSE of is _________________.