Chapter 8 - XYZ Custom Plus

484Chapter 8 Real Numbers and Algebraic ExpressionsB Use the rule for order of operations along with the rules for addition, subtraction, and multiplication to simplify eachof the following expressions. [Examples 12–16]31. 4(23 1 2)32. 7(26 1 3)33. 210(22 2 3)34. 25(26 2 2)35. 23 1 2(5 2 3)36. 27 1 3(6 2 2)37. 27 1 2[25 2 9]38. 28 1 3[24 2 1]39. 2(25) 1 3(24)40. 6(21) 1 2(27)41. 3(22)4 1 3(22)42. 2(21)(23) 1 4(26)43. (8 2 3)(2 2 7)44. (9 2 3)(2 2 6)45. (2 2 5)(3 2 6)46. (3 2 7)(2 2 8)47. 3(5 2 8) 1 4(6 2 7)48. 2(3 2 7) 1 3(5 2 6)49. 22(8 2 10) 1 3(4 2 9)50. 23(6 2 9) 1 2(3 2 8)51. 23(4 2 7) 2 2(23 2 2)52. 25(22 2 8) 2 4(6 2 10)53. 3(22)(6 2 7)54. 4(23)(2 2 5)55. Find the product of 23, 22, and 21.56. Find the product of 27, 21, and 0.57. What number do you multiply by 23 to get 12?58. What number do you multiply by 27 to get 221?59. Subtract 23 from the product of 25 and 4.60. Subtract 5 from the product of 28 and 1.Work Problems 61–68 mentally, without pencil and paper or a calculator.61. The product 232(2522) is closest to which of the followingnumbers?a. 15,000 b. 2500 c. 21,500 d. 215,00062. The product 32(2522) is closest to which of the followingnumbers?a. 15,000 b. 2500 c. 21,500 d. 215,00063. The product 247(470) is closest to which of the followingnumbers?a. 25,000 b. 420 c. 22,500 d. 225,00064. The product 247(2470) is closest to which of the followingnumbers?a. 25,000 b. 420 c. 22,500 d. 225,00065. The product 2222(2987) is closest to which of the followingnumbers?a. 200,000 b. 800 c. 2800 d. 21,20066. The sum 2222 1 (2987) is closest to which of the followingnumbers?a. 200,000 b. 800 c. 2800 d. 21,20067. The difference 2222 2 (2987) is closest to which of thefollowing numbers?a. 200,000 b. 800 c. 2800 d. 21,20068. The difference 2222 2 987 is closest to which of thefollowing numbers?a. 200,000 b. 800 c. 2800 d. 21,200