内容正文:
练习(一) 42.72 × 24 = 66 × 20.73 = 52.31 × 75 = 38 × 9.55 = 22 × 45.2 = 75.81 × 12 = 62 × 28.11 = 10.66 × 89 = 94 × 43.9 = 84.95 × 34 = 84.48 × 53 = 53 × 62.14 = 练习(二) 66.76 × 54 = 74 × 15.35 = 68.2 × 85 = 7 × 35.41 = 72 × 26.17 = 31.47 × 61 = 90 × 15.44 = 54.22 × 76 = 69 × 71.02 = 45.75 × 31 = 9.84 × 3 = 50 × 89.36 = 练习(三) 42.41 × 77 = 65 × 65.75 = 72.79 × 94 = 74 × 96 = 62 × 26.08 = 55.02 × 61 = 68 × 27.86 = 49.91 × 33 = 89 × 35.08 = 13.49 × 12 = 65.83 × 36 = 39 × 40.12 = 练习(四) 26.24 × 5 = 49 × 93.85 = 55.63 × 66 = 33 × 36.63 = 34 × 50.46 = 59.44 × 49 = 97 × 10.42 = 30.62 × 75 = 67 × 83.12 = 5.66 × 63 = 45.4 × 3 = 50 × 40.95 = 练习(五) 83.81 × 23 = 11 × 64.88 = 47.22 × 83 = 91 × 8.55 = 16 × 44.3 = 27.65 × 21 = 67 × 23.48 = 90.41 × 91 = 45 × 88.86 = 58.14 × 40 = 70.44 × 28 = 12 × 78.46 = 练习(六) 19.74 × 98 = 82 × 14.65 = 8.74 × 17 = 36 × 67.11 = 85 × 32.6 = 76.88 × 28 = 93 × 2 = 49.45 × 33 = 25 × 67.76 = 91.75 × 15 = 97.75 × 17 = 67 × 42.07 = 练习(七) 81.32 × 91 = 53 × 98.31 = 73.76 × 45 = 60 × 20.79 = 67 × 93.72 = 5.46 × 81 = 98 × 0.75 = 99.43 × 86 = 6 × 26.04 = 3.05 × 90 = 19.08 × 12 = 91 × 6.75 = 练习(八) 84.15 × 88 = 47 × 27.52 = 50.42 × 99 = 20 × 23.08 = 22 × 21.27 = 39.42 × 55 = 88 × 33.93 = 88.66 × 93 = 73 × 99.93 = 92.03 × 97 = 94.74 × 55 = 27 × 22.86 = 练习(九) 25.29 × 86 = 30 × 66.9 = 83.59 × 61 = 37 × 68.7 = 30 × 24.18 = 33.96 × 36 = 80 × 36.32 = 71.71 × 77 = 81 × 57.04 = 60.91 × 53 = 27.36 × 95 = 46 × 5.84 = 练习(十) 23.81 × 29 = 14 × 30.05 = 4.59 × 45 = 10 × 470.3 = 25 × 97.14 = 90.88 × 19 = 21 × 68.03 = 66.66 × 52 = 83 × 99.58 = 18.47 × 33 = 46.24 × 40 = 70 × 54.9 = 练习(一) 练习(六) 1025.28 1368.18 3923.25 1934.52 1201.3 148.58 #REF! 994.4 909.72 2415.96 2771 2152.64 1742.82 948.74 4126.6 186 1631.85 1694 2888.3 4477.44 3293.42 1376.25 1661.75 2818.69 练习(二) 练习(七) 3605.04 1135.9 5797 7400.12 5210.43 3319.2 247.87 1884.24 1919.67 1247.4 6279.24 442.26 1389.6 4120.72 4900.38 73.5 8550.98 156.24 1418.25 29.52 4468 274.5 228.96 614.25 练习(三) 练习(八) 3265.57 4273.75 6842.26 7405.2 12