1. Name the property shown by the statement (4 + x) + y = 4 + (x + y). A. Associative Property of Addition B. Commutative Property of Multiplication C. Associative Property of Multiplication D. Commutative Property of Addition Hint 2. When one positive tile is paired with one negative tile, the result is a(n) _____. A. algebra tile pair B. opposite C. additive inverse D. zero pair Hint 3. What is the difference 6 - (-6)? A. 6 B. 12 C. -6 D. 0 Hint 4. In 1960, Chile experienced the largest earthquake of the century. The magnitude was 9.5 on the Richter scale. In 1952, Ecuador had the fourth largest earthquake. The magnitude was 0.7 less than the earthquake in Chile. What was the magnitude of the earthquake in Ecuador? A. 8.8 B. 10.2 C. 7.8 D. 11.2 Hint 5. Solve the equation |a - 1| = 7. A. 8 B. -6 or 8 C. -6 D. -8 or 6 Hint 6. You can show that a statement is false by finding one _____. A. commutative example B. associative example C. closure example D. counterexample Hint 7. To play a game, you have a spinner with four equal-sized regions. One region is yellow, one is blue, one is green, and one is white. How many outcomes are possible when you spin the spinner twice? A. 4 B. 8 C. 12 D. 16 Hint 8. Solve 13a = 5a - 8. A. B. 1 C. -1 D. Hint 9. Solve 5 - = A. -15 B. 15 C. -5 D. 5 Hint 10. In mathematics, a ratio is a comparison of two numbers by ______. A. addition B. multiplication C. division D. subtraction Hint 11. 15% of what number is 10.2? A. 68 B. 0.68 C. 1.53 D. 147 Hint 12. Sales tax is an example of a ______. A. percent of decrease B. percent of increase C. simple interest D. discount Hint 13. If the outcome of one event does not affect the outcome of the other event, then the events are called ______. A. mutual events B. dependent events C. independent events D. complex events Hint 14. Simplify the expression 4(2x + 3y). A. 42x + 43y B. 8x + 12y C. 42x + 3y D. 8x + 3y Hint 15. Refer to the data. Which three types of music are sold most often at the local music store? A. Folk, Rap, Country B. Pop/Rock, Folk, Punk C. Pop/Rock, Punk, Celtic D. Pop/Rock, Folk, R & B Hint 16. Shanee had \$190 in her bank account. She had to give her mother \$80 from the account, but she got \$50 to put into the account from her birthday. If she needs to take out \$20 more to pay for a new stereo, how much will she have left? A. \$340 B. \$40 C. \$140 D. \$150 Hint 17. Simplify –10x + (-4x). A. 14x B. 6x C. -14x D. -6x Hint 18. The product of two rational numbers with the same sign is ______. A. always -1 B. always positive C. negative or positive depending upon the rational numbers that are factors D. always negative Hint 19. Express as a percent. Round to the nearest percent. A. 37% B. 60% C. 55% D. 44% Hint 20. The chart shows the amount of time Janette spends on each activity in her day. What percent of the time is Janette sleeping or socializing? Round to the nearest tenth of a percent if necessary. A. 37.5% B. 54.2% C. 8.3% D. 29.2% Hint