五年级数学上册小数乘法简便计算课件.pptx

一、根据运算定律填空。,8.50.89_,250(0.120.04)(_)_,7.91.92.11.9(_)_,二、用简便方法计算下面各题。,0.8520.02540990.43,3.68993.680.9621010.962,2.42500.91998,0.56.050.021.31005,0.252.249.14.80.94.8,一、根据运算定律填空。,9.53.37_,0.025(0.540.4)(_)_,5.81.54.21.5(_)_,二、用简便方法计算下面各题。,0.3982.50.049990.99,7.8699997.860.644100010.644,20.0250.431001,0.55.190.22.3101,0.0258.8344.58.25.58.2,一、根据运算定律填空。,2.86.62_,0.25(0.03400)(_)_,2.54.17.54.1(_)_,二、用简便方法计算下面各题。,0.7010.02549990.48,6.63996.630.9511010.951,7.6250.6898,0.056.0922.1101,0.0254.850.042.49.67.69.6,一、根据运算定律填空。,2.58.22_,250(0.380.4)(_)_,8.33.71.73.7(_)_,二、用简便方法计算下面各题。,0.4210.25400990.23,8.9199998.910.6731010.673,4.82500.17102,0.053.3222.3104,2.54.5840.45.19.65.1,一、根据运算定律填空。,8.76.81_,2.5(0.430.04)(_)_,2.37.57.77.5(_)_,二、用简便方法计算下面各题。,0.961.2580990.31,7.95997.950.7521010.752,0.40.0250.491002,0.57.2121.1104,0.0258.064007.54.32.54.3,一、根据运算定律填空。,3.62.48_,2.5(0.77400)(_)_,7.43.52.63.5(_)_,二、用简便方法计算下面各题。,0.7682.50.41010.94,3.2293.220.889100010.889,6.8250.161001,0.052.860.022.2103,0.0257.480.46.71.43.31.4,一、根据运算定律填空。,3.40.26_,0.025(0.160.4)(_)_,1.41.48.61.4(_)_,二、用简便方法计算下面各题。,0.511.250.89990.35,1.4791.470.5471010.547,1.62500.11102,0.52.65201.2105,0.0250.110.049.68.90.3999999999999998.9,一、根据运算定律填空。,0.55.27_,250(0.9940)(_)_,9.65.20.3999999999999995.2(_)_,二、用简便方法计算下面各题。,0.9890.50.002990.86,8.4199998.410.8541010.854,0.80.250.961002,0.051.690.22.4105,2.54.88405.56.74.56.7,一、根据运算定律填空。,1.71.11_,25(0.3400)(_)_,6.26.23.86.2(_)_,二、用简便方法计算下面各题。,0.6032.5400990.39,1.7491.740.694110.694,5.60.0250.18999,0.53.121.41001,2.55.874007.75.72.35.7,一、根据运算定律填空。,3.44.72_,250(0.160.04)(_)_,4.89.65.29.6(_)_,二、用简便方法计算下面各题。,0.3360.50.0210010.16,4.25994.250.5331010.533,7.6250.5299,0.50.292001.11005,2.51.9143.61.66.41.6,一、根据运算定律填空。,8.15.26_,0.025(0.710.04)(_)_,6.46.73.66.7(_)_,二、用简便方法计算下面各题。,0.8490.050.00210010.65,2.279992.270.3621010.362,0.82.50.3898,0.053.2522.5105,0.0252.444.98.35.18.3,一、根据运算定律填空。,0.46.56_,250(0.450.4)(_)_,9.13.60.93.6(_)_,二、用简便方法计算下面各题。,0.3762.5401010.64,9.11999.110.37110010.371,3.2250.75999,0.053.6621.51004,0.0255.6343.99.46.19.4,一、根据运算定律填空。,3.59.81_,25(0.7340)(_)_,8.64.11.44.1(_)_,二、用简便方法计算下面各题。,0.9740.02549990.35,1.56991.560.73210010.732,0.80.0250.64998,0.51.540.22.1102,0.0256.210.42.81.17.21.1,一、根据运算定律填空。,5.37.5_,250(0.764)(_)_,2.61.47.41.4(_)_,二、用简便方法计算下面各题。,0.1781.25800990.86,7.4399997.430.5521010.552,7.62500.95101,0.55.88201.5101,0.0253.840.46.41.63.61.6,一、根据运算定律填空。,2.51.11_,25(0.584)(_)_,1.28.88.88.8(_)_,二、用简便方法计算下面各题。,0.29612.581010.58,3.469993.460.19110010.191,2.82.50.58101,0.51.272001.1104,0.0254.090.40.79.69.39.6,一、根据运算定律填空。,1.59.72_,250(0.860.04)(_)_,7.91.82.11.8(_)_,二、用简便方法计算下面各题。,0.3871.2580010010.93,4.699994.690.53910010.539,0.8250.8599,0.057.680.22.51005,2.53.724005.33.84.73.8,一、根据运算定律填空。,2.51.77_,25(0.484)(_)_,4.83.65.23.6(_)_,二、用简便方法计算下面各题。,0.9910.12581010.25,4.4399994.430.94810010.948,4.42500.621002,0.058.8421.41005,0.0251.09403.73.76.33.7,一、根据运算定律填空。,9.93.53_,0.25(0.364)(_)_,8.49.91.69.9(_)_,二、用简便方法计算下面各题。,0.0480.02540990.23,2.839992.830.352110.352,62.50.471001,0.59.830.22.31004,0.0254.4949.57.60.57.6,一、根据运算定律填空。,2.60.02_,250(0.15400)(_)_,2.63.97.43.9(_)_,二、用简便方法计算下面各题。,0.281500.029990.99,6.34996.340.537110.537,3.60.250.62102,0.56.250.21.21005,0.254.020.472.932.9,一、根据运算定律填空。,2.51.08_,0.025(0.240.4)(_)_,8.12.71.92.7(_)_,二、用简便方法计算下面各题。,0.8060.50.0029990.69,5.1995.190.4691010.469,5.20.250.981001,0.050.050.021.41001,0.253.410.048.38.71.78.7,一、根据运算定律填空。,5.57.62_,2.5(0.7840)(_)_,1.38.78.78.7(_)_,二、用简便方法计算下面各题。,0.5620.0250.41010.27,5.4899995.480.394110.394,0.42.50.6799,0.058.980.22.41001,0.256.6407.24.52.84.5,一、根据运算定律填空。,1.74.52_,25(0.884)(_)_,7.87.22.27.2(_)_,二、用简便方法计算下面各题。,0.9682.5400990.12,9.3899999.380.938100010.938,20.0250.56999,0.54.832001.5103,0.0255.650.0442.862.8,一、根据运算定律填空。,4.82.3_,0.25(0.040.04)(_)_,2.51.67.51.6(_)_,二、用简便方法计算下面各题。,0.4040.1250.089990.82,1.229991.220.322110.322,7.60.250.3999,0.59.792002.2103,0.257.01409.36.60.6999999999999996.6,一、根据运算定律填空。,3.50.79_,25(0.110.4)(_)_,3.85.26.25.2(_)_,二、用简便方法计算下面各题。,0.8120.2540010010.98,9.679999.670.752110.752,0.80.0250.93999,0.54.2722.11004,0.254.650.45.93.34.13.3,一、根据运算定律填空。,8.62.5_,250(0.6940)(_)_,5.96.44.16.4(_)_,二、用简便方法计算下面各题。,0.27500.0210010.14,3.4193.410.24610010.246,