小数乘法简便计算强烈推荐245.docx

1、小数乘法简便计算强烈推荐245852.8+8.5720.812.58.94.1-0.89219.90.48.22.52.42.50.125950.89.27.1+9.22.90.250.580.40.28(100+4)0.88.21.25699.9355+3.5503.21.259.77.1-0.97329.90.043.5251.62.512.56284.96.8+4.93.20.250.540.29(100+6)0.861.25279.9615.3+6.1474.812.54.26.1-0.427910.10.43.72.52.8251.25510.87.85.1+7.84.92.50.8

2、440.23(200+3)0.85.80.1256010.1832+8.3803.212.58.57.1-0.854510.141.42.53.6251.25583.84.6+3.85.40.250.640.040.27(500+4)0.87.312.56910.1974.2+9.7581.60.1252.33.1-0.23819.90.450.253.2251.25940.83.82+3.882.50.970.40.26(100+9)87.412.55410.1484.2+4.85880.1259.64.1-0.96509.947.60.250.4251.25470.89.17.5+9.12

3、.50.250.870.040.28(300+5)0.88.40.125619.9312.7+3.173412.53.44.1-0.345510.143.82520.2512.51783.81.7+3.88.3250.780.40.26(300+3)83.30.1253110.1185.2+1.8485.612.51.78.1-0.172110.10.040.32.51.62.512.58986.39.8+6.30.20.250.560.40.22(100+1)0.89.412.5219.9791.4+7.9861.612.52.96.1-0.29619.90.45.7250.82512.52

4、385.35.3+5.34.70.250.840.040.21(400+9)82.612.5339.9383.8+3.8622.412.57.51.1-0.752210.145.8253.20.251.255487.35.7+7.34.32.50.830.040.24(400+7)86.40.125199.9494.7+4.9537.20.12556.1-0.59710.10.42.40.2540.251.2580.889.6+80.40.250.9840.22(300+5)87.81.25179.9544.9+5.4511.612.53.65.1-0.36859.90.48.92.50.82

5、512.54389.48.9+9.41.1250.5540.21(200+8)84.50.125869.9691.7+6.9830.812.59.62.1-0.968610.1430.251.62.512.5890.80.42.8+0.47.20.250.540.27(200+9)0.87.71.25469.9815.2+8.1486.40.1254.73.1-0.472010.144.3251.6251.25889.96.6+9.93.4250.690.40.26(400+1)83.60.125459.9521.5+5.2857.21.256.65.1-0.66259.90.47.2252.42.512.5920.81.24.1+1.25.9250.840.25(500+2)85.31.25389.9751.3+7.5872.412.55.75.1-0.57709.948252.82512.55786.33.3+6.36.7250.520.40.24(100+7)0.88.31.25649.9114.7+1.1532.41.259.73.1-0.973210.10.43.3252.4251.25300.84.61.8+4.68.2