小数乘法简便计算强烈推荐250.docx

1、小数乘法简便计算强烈推荐2500.45.3252.82.51.25840.82.87.2+2.82.82.50.570.040.25(300+7)0.8712.5919.9574.7+5.7532.40.1256.77.1-0.67449.947.90.250.42.51.25100.85.81.6+5.88.42.50.990.040.25(100+2)86.71.259310.1121.1+1.2896.40.1251.19.1-0.11259.942.22.50.82.51.2590.86.89.1+6.80.92.50.5740.29(300+9)85.11.257110.1941.2

2、+9.4884.81.251.35.1-0.135410.10.460.252.80.2512.5850.80.88.2+0.81.8250.670.040.23(400+5)0.88.91.256410.1121.3+1.2873.20.1252.36.1-0.23359.90.44.2253.22.51.251181.97.1+1.92.90.250.8740.27(200+7)0.87.50.125719.9543.3+5.46740.1257.96.1-0.791810.145.62540.251.25620.86.91.9+6.98.10.250.750.040.25(300+7)8

3、2.412.5409.9294.9+2.95140.1258.62.1-0.861210.145.60.253.60.250.1253087.22.5+7.27.5250.690.040.27(200+9)0.891.25729.9703.4+7661.612.55.43.1-0.546710.1452.52.42512.55982.43.2+2.46.8250.620.040.29(500+9)89.912.5979.9503.6+5643.21.256.38.1-0.633310.143.20.2522512.54484.26.8+4.23.20.250.7840.26(100+9)0.8

4、9.51.258610.1601.5+6855.60.1257.76.1-0.77329.90.046.32.54251.259080.64.4+0.65.62.50.780.40.29(500+5)83.70.125129.9241.2+2.4887.20.12533.1-0.3599.90.48.62.50.40.2512.5300.89.16.2+9.13.80.250.9440.21(200+4)0.84.41.25669.9511.1+5.1890.81.251.26.1-0.127910.10.47.92.542512.5820.85.76.3+5.73.72.50.680.40.

5、29(400+1)87.40.125619.9161.1+1.6896.40.1254.59.1-0.45949.90.46.92.52.40.251.25940.83.85.9+3.84.12.50.7340.29(200+3)0.84.712.5499.9181.9+1.8810.812.595.1-0.9119.940.30.253.22.50.1256482.16.8+2.13.20.250.960.040.22(100+2)0.89.112.56010.1842.5+8.4753.212.55.94.1-0.59119.90.410.2542.50.1254387.34.3+7.35.7250.9840.26(200+4)87.41.255410.1634.2+6.3585.60.1253.79.1-0.376910.10.049.3250.80.250.125410.81.35.3+1.34.70.250.70.40.21(500+8)83.50.1258910.1462.7+4.6734.81.254.31.1-0.437010.10.40.3253.20.2512.56081.98+1.92250.8140.24(400+5)83.41.25789.9