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ACC Unit 2 Test Study Guide Test Date: Tuesday, October 27 Topics: All Topics from Unit 1: Divisibility Rules, Long Division, GCF, LCM, Distributive Property, Exponents and Powers, Order of Operations Variables and Expressions Translating Phrases into Expressions Representing Real World Situations with Expressions (see below) Combining Like Terms (see below) Distributive Property with Variables (see below) Equivalent Expressions (see Below) *To study, you should complete odd numbered problems from the textbook so that you can check if you got the correct answer or not in the back of the textbook. Selected answers begin on Pg. SA1. Vocabulary: All vocab from Unit 1 Expression Term Coefficient Variable Constant Simplify Evaluate The following problems can be done on lined paper to help you study. The numbering is out of order because we chose the best problems. A. Evaluating Expressions: 1a. c + 5 + z, when c = 6 and z = 8 1b. 2(10 + m), when m = 2 9 2a. v6, when v = 10 2b. , when s = 9 s+2 2 3a. a , when a = 7 a+9 4a. k + 6 + s, when k = 10 and s = 9 3b. , when a = 5 5 4b. 4r3 , when r = 2 B. Translating Phrases into Expressions: 1) Twelve more than five times a number. 2) Six times the sum of a number and four. 3) Eight subtracted from two times a number. 4) The quotient of one less than a number and twice a number. C. Representing Real World Situations with Expressions: Include let statements. 1. Kalid ate g out of 14 gumdrops. Write an expression to represent the gumdrops he has left. 2. Gabe has t trading cards. Tony has 91 more trading cards than Gabe. Write an expression to show how many cards Tony has. 3. Marisa bought new jeans at the mall. Each pair cost $45 and she had a $10 off coupon. Write an expression to represent the total cost. 4. Jack has 4 times more pencils than David. David has 6 more pencils than Abbie. Write an expression to show how many pencils Jack has if Abbie has p pencils. D. Combining Like Terms and the Distributive Property: E. Equivalent Expressions: Determine whether each set of expressions is equivalent or not. 1. y + y + y = 3y 2. 4x5 = 4 * x * x * x * x 4. 5y + 8 = 8 + y + y + y + y + y 7. 5(x +3) = 5x + 8 3. 4 - z = z – 4 5. n * n * n + 5 = n3 + 5 6. x + x + x + x= 4x