For 1–5, match each term to the best definition. 1. Commutative Property of Addition 2. Commutative Property of Multiplication 3. Associative Property of Addition 4. Associative Property of Multiplication 5. like terms a. For any numbers a and b, a 1 b 5 b 1 a. b. For any numbers a, b, and c, (ab)c 5 a(bc). c. Two or more terms that have the same variable raised to the same power. d. For any numbers a and b, ab 5 ba. e. For any numbers a, b, and c, (a 1 b) 1 c 5 a 1 (b 1 c). 6. Explain what it means for two expressions to be equivalent.
2 • TOPIC 1: Expressions Review Use the Distributive Property and combine like terms to rewrite each expression. 1. 9(6m 1 3) 1 6(1 2 4m) 2. 3(4x 1 8y) ________61 2y 2 x Determine the better buy. 3. 6 car washes for $50 or 4 car washes for $36 4. 10 markers for $2.40 or 32 markers for $7.00 Determine the least common multiple (LCM) of each pair of numbers. 5. 6 and 10 6. 7 and 12