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Assignment # _______ REVIEW: Properties of Numbers Name _________________________ AF 1.3 Apply Commutative, Associative, Identity, and Distributive Properties Pre-Algebra, Per. ________ Date __________________________ Distributive Property: to multiply a sum or difference, make sure the outside number says, “Hi” to everyone inside. Example: 3(4x – 5) = 3(4x) – 3(5) = 12x – 15 1. 3(x + 2) = 2. 6(x + 5) = 3. 4(x – 7) = 4. 7(y – 5) = 5. 2(5x + 3) = 6. (3y + 4)6 = 7. 6(x + y) = 8. 4(x – y) = 9. 12(4x + 2y) = 10. 9(2x – y) = 11. Which expression is equivalent to 4x – 4y? A 4xy B 4(x – y) 11. ______ C 4x – y D x – 4y 12. Which of the following equations illustrates the inverse property of multiplication? A 4x1=4 B 4x0=0 C 4 x 4 = 16 13. Which operation will change the value of any nonzero number? A adding zero B multiplying by zero D 4 C multiplying by one 12. ______ 1 1 4 13. ______ D dividing by one 14. Which property is used in the following equation? (2 3) 4 = 2 (3 4) A associative property of addition B associative property of multiplication C distributive property D commutative property of addition 15. Which property is used in the following equation? 3(x + 8) = 3x + 24 A distributive property B commutative property of addition C associative property of addition D associative property of multiplication 16. Which equation shows the distributive property? A (12 + 4) + 0 = 12 + 4 B 3(4 + 6) = 12 + 18 C 4+3+6=6+4+3 D (12 + 4) + 6 = 12 + (4 + 6) 17. Which property is used in the following equation? 4 + (8 + 5) = (4 + 8) + 5 A associative property of multiplication B commutative property of addition C distributive property D associative property of addition 18. Which operation will NOT CHANGE the value of any nonzero number? A multiplying by one B adding one C multiplying by zero D dividing by zero 19. Which property is used in the following equation? 5(2 + 8) = 10 + 40 A associative property of addition B commutative property of addition C associative property of multiplication D distributive property 20. Which property provides justification for the equation? (2 + 3) + 4 = 2 + (3 + 4) A inverse property of addition B associative property of addition C commutative property of addition D distributive property 14. ______ 15. ______ 16. ______ 17. ______ 18. ______ 19. ______ 20. ______