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Assignment # _____ REVIEW: Properties Name _________________________ Standard: AF 1.3 Use properties of rational numbers Pre-Algebra, Period ______ Date __________________________ A. B. C. D. E. F. Commutative Property of Addition Commutative Property of Multiplication Associative Property of Addition Associative Property of Multiplication Additive Identity (Identity Prop. of Addition) Multiplicative Identity (Identity Prop. of multiplication) 2+3=3+2 45=54 (1 + 3) + 5 = 1 + (3 + 5) (3 4) 5 = 3 (4 5) 7+0=7 71=7 1 3 3 4 3 12 G. Inverse Property of Addition (Additive Inverse) 8 + (–8) = 0 H. Inverse Property of Multiplication (Multiplicative Inverse) 5 I. Distributive Property 1 1 5 3(3 + 4) = 3(3) + 3(4) = 9 + 12 = 21 3(4x + 5) = 3(4x) + 3(5) = 12x + 15 Using the letters above (in bold), identify each property shown. 1. 20 + 15 = 15 + 20 _______ 4. 9 2. 35 + (–35) = 0 ______ 1 1 _______ 9 3. 1 5 5 ______ 4 5 20 5. (3 + 4)(5 + 6) = (5 + 6)(3 + 4) _______ 8. 5x – 5y = 5(x – y) _______ 6. 3 • (100 + 3) = 300 + 9 _______ 7. 8 • 1 = 8 _______ 9. 2(3 + 6) = 2(3) + 2(6) _______ 10. –16 + 0 = –16 _______ 11. 1 15 1 _______ 15 12. (6 x 3)(5 x 2) = (5 x 2)(6 x 3) _______ 13. 4 • (5 • 6) = (4 • 5) • 6 _______ 14. 14a + 14b = 14(a + b) _______ 15. (x + 9) + 1 = x + (9 + 1) _______ 16. 4 + 6 + 5 = 5 + 4 + 6 _______ 17. 8(50 + 4) = 400 + 32 _______ 18. Which expression is equivalent to 4x – 4y? A 4xy B 4(x – y) C 4x – y 18. ______ D x – 4y 19. Which of the following equations illustrates the inverse property of multiplication? A 4x1=4 B 4x0=0 D 4 C 4 x 4 = 16 19. ______ 1 1 4 20. Which property is used in the following equation? (2 + 3) (5 + 4) = (5 + 4)(2 + 3) 20. ______ A associative property of addition B commutative property of addition C distributive property D commutative property of multiplication 21. Which property is used in the following equation? 3(x + 8) = 3x + 24 21 ______ A distributive property B commutative property of addition C associative property of addition D associative property of multiplication 22. Which equation shows the distributive property? 22. ______ 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) 23. 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 23. ______ 24. Which expression is the result of applying the distributive property to 3 x (200 + 4)? A 600 + 12 B 3 x 204 C 600 + 4 D 3 + 212 25. Which operation will NOT CHANGE the value of any nonzero number? A multiplying by one B adding one 25. ______ C multiplying by zero D dividing by zero 26. Which property is used in the following equation? 5(2 + 8) = 10 + 40 26. ______ A associative property of addition B commutative property of addition C associative property of multiplication D distributive property 1 4 4 3 4 12 B associative property of multiplication 27. Which property provides justification for the equation? A commutative property of multiplication C additive identity 1 1 8 B 8x0=0 27. ______ D multiplicative identity 28. Which of the following illustrates the inverse property of multiplication? A 8 24. _____ C 8x1=8 D 8 28. ______ 8 8 8