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1、用简便方法计算 2586.24?586.20.4 36152 361.50.2 45102 4510.2 3427+3473 342.7+347.3 8699+86 8.699+8.6 12588 1.258.8 6.94.83.1 0.4566.223.78 15.89(6.755.89) 4.025.40.98 5.171.83.2 13.75(3.756.48) 3.687.562.68 7.852.340.854.66 35.61.815.67.2 3.822.90.189.1 9.64.83.6 7.140.532.47 5.272.860.661.63 13.354.682.65
2、73.81.6413.85.36 47.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.25 66.868.661.34 0.2516.24 (1.250.125)8 3.6102 3.723.56.283.5 36.83.96.1 15.613.115.615.62.1 4.87.8780.52 324.90.9 4.8100.1 56.59.956.5 7.0910.80.87.09 25.48(9.40.52) 4.23.5 3201.258 18.769.918.76 3.522.50.4 3.94.16.15.9 5.63.5 9.60.80.
3、4 4.2994.2 17.8(1.784) 0.491.4 1.252.532 3.6510.1 15.20.254 0.89100.1 146.5(2346.5) 3.834.563.835.44 4.3612.58 9.7999.7 27.53.77.53.7 8.542.50.4 0.65101 3.20.2512.5 (45.932.7)80.125 3.140.6831.40.032 5.61.250.82.50.4 7.20.22.41.4 8.91.01 7.74(2.81.3)1.52.26 3.92.73.97.3 181.80.1250.8 12.79.91.27 21(
4、9.33.7)5.6 15.02-6.8-1.02 5.411-5.4 2.316+2.323+2.3 9.43-(6.28-1.57) 3.654.736.50.37 46572386 13.70.253.74 2.229.9+6.666.7 1010.87-0.9187 10.716.1-15.110.7 0.79199 4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98 0.134+2.66+0.866 1.27+3.9+0.73+16.1
5、 7.54.96.5 3.070.381.62 1.293.72.716.3 82.451.55 3.251.790.591.75 23.40.813.47.2 0.32403 3.20.364.81.64 1.233.40.236.6 0.2536 12.7(3.70.84) 36.541.764.54 0.250.734 7.60.80.27.6 0.85199 0.258.54 1.288.60.728.6 12.50.960.8 10.49.60.35 0.8(4.31.25) 3.123.1299 28.610128.6 0.8615.70.8614.7 2.4102 2.311.2
6、0.5 147.322.68 2.648.677.3611.33 7028 (2.50.25)0.4 9.161.50.59.16 3.63.60.5 63.42.50.4 4.91.4 3.9(1.35) (7.71.54)0.7 2.52.4 2.745 15(0.150.4) 0.351.2520.8 32.40.90.132.4 150.25 4.51.8 4.23.5 9300.65 3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5 7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 3.
7、29+0.73-2.29+2.27 3.290.254 0.1258.8 0.250.28 0.1253.22.5 3540.2 0.2540.254 3.59.9 3.599+3.5 3.5101-3.5 3.59.9+3.50.1 3.52.7+350.73 3.52.7-3.50.7 (32+5.6)0.8 3.50.6-0.50.6 4.93.5 70.254 70.125 7.35(7.350.25) 7.35(7.350.25) 3.070.381.62 1.293.72.716.3 82.451.55 3.251.790.591.75 23.40.813.47.2 0.32403
8、 3.20.364.81.64 1.233.40.236.6 0.2536 12.7(3.70.84) 36.541.764.54 0.250.734 7.60.80.27.6 0.85199 0.258.54 1.288.60.728.6 12.50.960.8 10.49.60.35 0.8(4.31.25) 3.123.1299 28.610128.6 (4.236.17)0.8 0.8615.70.8614.7 2.4102 147.322.68 2.648.677.3611.33 2.311.20.5 (2.50.25)0.4 9.161.50.59.16 3.63.60.5 4.5
9、1.8 4.23.5 9300.65 63.42.50.4 4.91.4 3.9(1.35) (7.71.54)0.7 2.52.4 2.745 0.351.2520.8 32.40.90.132.4 150.25 7028 15(0.150.4) 4.252.59.90.17 3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5 7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.290.254 0.1258.8 0.250.28 0.1253.22.5 3
10、540.2 0.2540.254 3.59.9 3.599+3.5 3.5101-3.5 3.59.9+3.50.1 3.52.7+350.73 3.52.7-3.50.7 (32+5.6)0.8 3.50.6-0.50.6 4.93.5 70.254 70.125 7.35(7.350.25) 7.35(7.350.25) 3.070.381.62 1.293.72.716.3 82.451.55 3.251.790.591.75 23.40.813.47.2 0.32403 3.20.364.81.64 1.233.40.236.6 0.2536 12.7(3.70.84) 36.541.
11、764.54 0.250.734 7.60.80.27.6 0.85199 0.258.54 1.288.60.728.6 12.50.960.8 10.49.60.35 0.8(4.31.25) 3.123.1299 28.610128.6 (4.236.17)0.8 0.8615.70.8614.7 2.4102 147.322.68 2.648.677.3611.33 2.311.20.5 (2.50.25)0.4 9.161.50.59.16 3.63.60.5 4.51.8 4.23.5 9300.65 63.42.50.4 4.91.4 3.9(1.35) (7.71.54)0.7
12、 2.52.4 2.745 0.351.2520.8 32.40.90.132.4 150.25 7028 15(0.150.4) 4.252.59.90.17 138435738 498397 502399 634555137 12556 30299302 1458914521 二、用简便方法计算。 1、36826491351 2、 89101111 3、24127476573 4、400273127 5、327(96127) 6、7298 7、442103142 8、999999 9、6752 10、25(784) 11、72125 12、90001258 13、40025 14、2536
13、 15、10327 16、76102 17、3600254 18、9935 19、(2512)4 20、56272744 21、569956 22、1252584 23、2532125 24、12564 (1)(7861)39 (2)7008218 (3)348163242410537 (4)125474725 (5)201316 (6)37420522695 (7)3000999 (8)997721 (9)8747087053 (10)(555555555)125 (11)125(840)25 (12)994999 (13)264974264 (14)454999999545 (15)999
14、9366666332 (16)124386512476110767 (17)624445518 (18)3400623438203814 38425 125278 4835235 458+251+749 196-26-74 8400254 536-249-136 813+569-213 48+523 4632+4668 9499+94 101482-482 1629+1648+1623 6753-6743 15(9+10+8) (6+8)25 第三单元 简便计算 姓名: 学号: 班级: 小测题二(简便运算二拆数凑整) 56125 4825 9928 10159 10243 14424 320- 198 小测题三(加减法或乘除法运算的简便运算) 136-48-36 417-138-62 246-178+78 437-(137+59) 252-(63-48) 357+(132-57) 30001258 1080(93) 1000(204) 24(368) 239+153+47-239