4. (2 + 1) + 4 = 2 + (1 + 4) Associative Property of Addition

5. 3 + 7 = 7 + 3 Commutative Property of Addition

6. 8 + 0 = 8 Identity Property of Addition

7. 6 4 = 4 6 Commutative Property of Multiplication

8. 17 + (-17) = 0 Inverse Property of Addition

9. 2(5) = 5(2) Commutative Property of Multiplication

10. 3(2 + 5) = 32 + 35 Distributive Property

11. 6(78) = (67)8 Associative Property of Multiplication

12. 5 1 = 5 Identity Property of Multiplication

14. (6 – 3)4 = 64 – 34 Distributive Property

15. 1(-9) = -9 Identity Property of Multiplication

16. 3 + (-3) = 0 Inverse Property of Addition

17. 1 + [-9 + 3] = [1 + (-9)] + 3 Associative Property of Addition

18. -3(6) = 6(-3) Commutative Property of Multiplication

19. -8 + 0 = -8 Identity Property of Addition

20. 37 – 34 = 3(7 – 4) Distributive Property

21. 6 + [(3 + (-2)] = (6 + 3) + (- 2) Associative Property of Addition

22. 7 + (-5) = -5 + 7 Commutative Property of Addition

23. (5 + 4)9 = 45 + 36 Distributive Property

24. -3(5 4) = (-3 5)4 Associative Property of Multiplication

25. -8(4) = 4(-8) Commutative Property of Multiplication

27. 5 1 / 7 + 0 = 5 1 / 7 Identity Property of Addition

28. Inverse Property of Multiplication

29. 3 / 4 – 6 / 7 = – 6 / 7 + 3 / 4 Commutative Property of Addition

30. 1 2 / 5 1 = 1 2 / 5 Identity Property of Multiplication

31. -8 2 / 5 + 0 = -8 2 / 5 Identity Property of Addition

32. [(- 2 / 3 )(5)]9 = - 2 / 3 [(5)(9)] Associative Property of Multiplication

34. 6(3 – 2n) = 18 – 12n Distributive Property

35. 2x + 3 = 3 + 2x Commutative Property of Addition

36. ab = ba Commutative Property of Multiplication

37. a + 0 = a Identity Property of Addition

38. a(bc) = (ab)c Associative Property of Multiplication

39. a1 = a Identity Property of Multiplication

40. a +b = b + a Commutative Property of Addition

41. a(b + c) = ab + ac Distributive Property

42. a + (b + c) = (a +b) + c Associative Property of Addition

43. a + (-a) = 0 Inverse Property of Addition