Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Name: ________________________ Class: ___________________ Date: __________ ID: A Practice Quiz - Properties #1-11: Match each expression with the correct property. 7. 5(19) = 5(10) + 5(9) commutative property of addition communtative property of multiplication commutative property of addition associative property of addition identity property of addition identify property of mutliplication inverse property of addition inverse property of addition multiplicative property of zero distributive property (use this twice) 8. (4 + 5) + 0 = 4 + 5 9. 13 + (5 + 10) = (5 + 10) + 13 10. 1 • x2 = x2 1. –9(5 + 9) = (–9)•(5) + (–9) (9) 11. 16ab = a b 16 2. 87 0 (–76) = 0 12. 5 + (–74) + 15 + (–6) ________________________________________ 3. –60 + 60 = 0 a. Use the COMMUTATIVE property to re–write that expression and make it easier to find the sum. 1 4. 2 =1 2 b. What’s the sum? 5. 11 81 10 = 81 11 10 6. 25(xy) = (25x)y 1 Name: ________________________ 13. ID: A –18 + 14 + (–7148) + 8 + (–4) ________________________________________ ________________________________________ a. Use the COMMUTATIVE property to re–write that expression and make it easier to find the sum. a. Use the ASSOCIATIVE property to re–write it and make it easier to find the sum. * Please don’t use the commutative property b. What’s the sum? 14. 47 + [3 + (–411) + 11] 16. b. What’s the sum? –25(–13)(–4) ________________________________________ 17. [–17 + 17] + [–98 + (–6)] + [5 + 20] + (–21) a. Use the COMMUTATIVE property to re–write it and make it easier to evalute. ________________________________________ b. What’s the product? 15. 5 • 37 • (–1) • 200 a. Use the ASSOCIATIVE property to re–write it and make it easier to find the sum. * Please don’t use the commutative property ________________________________________ b. What’s the sum? a. Use the COMMUTATIVE property to re–write it and make it easier to find the product. b. What’s the product? 2 Name: ________________________ 18. ID: A 1 8( • 12) • (–1) 8 ________________________________________ a. Use the ASSOCIATIVE property to re–write it and make it easier to find the product. * Please don’t use the commutative property b. What’s the product? 19. 11 2 9 ÊÁÁ 7 1 ˆ˜˜ • • • Á • ˜ •4 7 9 2 ÁÁË 11 4 ˜˜¯ #21-28: Use the DISTRIBUTIVE Property to rewrite each expression. Use the examples above to help. ________________________________________ 20. −8(5+ 8) a. Use the ASSOCIATIVE and COMMUTATIVE properties to re–write it and make it easier to find the product. 21. 2(8− 1) 22. (−2+ 8)6 b. What’s the product? 23. (9− 2)(−5) 3 Name: ________________________ ID: A 31. Colin didn’t know 5 • 19 in his head, but he thought, “ I 24. (x − 3)8 can break it up into two different multiplication problems that I do know, then add each product at the end”. 25. 5(c +7) a. What 2 multiplication problems did he probably break it up into? 26. −9(1+ z) b. What’s the final answer? c. What property did he use?. 27. (3− c)7 32. Now, use that propery to find 7 • 13 in your head. 28. Use the DISTRIBUTIVE property to complete the equation below. 33. Here’s an explanation of how to use counters to evaluate –3 + 9: 5(x + 6) = 5x + –– –– –– –– –– –– –– –– 29. Use the DISTRIBUTIVE property to complete the equation below. (y + 3)7 = + 21 Please explain how the INVERSE property of ADDITION is used to find the sum. –– –– –– –– –– –– –– –– 30. Use the DISTRIBUTIVE property to complete the equation below. 3(a – ) = 3a – 24 –– –– –– –– –– –– –– –– 4 Name: ________________________ ID: A 34. Use the INVERSE property of ADDITION to complete the equation below. 23 + 39. Use the INVERSE property of MULTIPLICATION to complete the equation below. 8 11 • = 11 8 =0 __________________ –– –– –– –– –– –– –– –– 35. Use the INVERSE property of ADDITION to complete the equation below. 40. Use the IDENTITY property of ADDITION to complete the equation below.. + (–3) = 0 __________________ –9 + = –9 –– –– –– –– –– –– –– –– 36. Use the INVERSE property of ADDITION to complete the equation below. 41. Use the IDENTITY property of ADDITION to complete the equation below. –65 + 65 = __________________ + 10 = 10 37. Use the INVERSE property of MULTIPLICATION to complete the equation below. 2 • 3 –– –– –– –– –– –– –– –– 42. Use the IDENTITY property of ADDITION to complete the equation below. =1 –– –– –– –– –– –– –– –– ÊÁ 7 ˆ˜ 0 + ÁÁÁ −6 ˜˜˜ = ÁË 8 ˜¯ 38. Use the INVERSE property of MULTIPLICATION to complete the equation below. • –– –– –– –– –– –– –– –– 1 =1 5 43. Use the IDENTITY property of MULTIPLICATION to complete the equation below. –– –– –– –– –– –– –– –– (–2) • = –2 –– –– –– –– –– –– –– –– 5 Name: ________________________ ID: A 44. Use the IDENTITY property of MULTIPLICATION to complete the equation below. 49. The last problem on a no–calculator test was: (–32)(–73)(3.14)(41186)(5637)(–8873)(0)(.5311) • 75.9 = 75.9 –– –– –– –– –– –– –– –– Please explain why knowing your properties would make you a happy test–taker. 45. Use the IDENTITY property of MULTIPLICATION to complete the equation below. 1 • (–32) = 50. Now, pretend your a teacher with a sense of humor. Write your own problem that would reward students who knew their ZERO property and annoy those students who didn’t. –– –– –– –– –– –– –– –– 46. Use the ZERO property of MULTIPLICATION to complete the equation below. 4 • 0= 13 51. Write a math example that shows that there’s no commutative property of subtraction. –– –– –– –– –– –– –– –– 47. Use the ZERO property of MULTIPLICATION to complete the equation below. ___________≠____________ * There are many answers. * 0• =0 52. Write a math example that shows that there’s no associative property of subtraction. –– –– –– –– –– –– –– –– 48. Use the ZERO property of MULTIPLICATION to complete the equation below. ___________≠____________ • (–25) = 0 –– –– –– –– –– –– –– –– 6 Name: ________________________ ID: A 53. Write a math example that shows that there’s no inverse property of subtraction. 58. Write a math example that shows that there is also an identity property of subtraction. ___________≠____________ 59. Write a math example that shows that there is also an identity property of division. 54. Write a math example that shows that there’s no commutative property of division. ___________≠____________ #60-63: Use properties to find the sum or product. 55. Write a math example that shows that there’s no associative property of division. 60. 9 + 45 + 5 + (–9) = ________________________________________ ___________≠____________ a. First, I used the _______________ property when I 56. Write a math example that shows that there’s no inverse property of division. ______________________________________ ______________________________________ ___________≠____________ b. Next, I used the _______________ property when I ______________________________________ ______________________________________ 57. Write a math example that shows that there’s no zero property of division. 7 Name: ________________________ 61. ID: A 1 2 7 • • • 6 • 10 = 6 7 2 63. –3.8 + (–3.8 + 5.07) + (–5.07) ______________________________________________ ______________________________________________ a. First, I used the _______________ property when I ______________________________________ ______________________________________ a. First, I used the _______________ property when I ______________________________________ ______________________________________ b. Next, I used the _______________ property when I ______________________________________ ______________________________________ b. Next, I used the _______________ property when I ______________________________________ ______________________________________ 62. 2 3 (7 • ) • = 3 2 ______________________________________________ a. First, I used the _______________ property when I ______________________________________ ______________________________________ b. Next, I used the _______________ property when I ______________________________________ ______________________________________ 8