小数乘法简便计算强烈推荐79.docx

1、小数乘法简便计算强烈推荐790.47.42.51.60.2512.536818.7+11.30.250.8240.26(300+7)0.83.412.5509.9471.9+4.7814.812.57.93.1-0.79239.90.044.90.2542.51.258082.23.8+2.26.2250.6340.21(200+4)0.870.1257410.1643.3+6.467412.55.16.1-0.513110.146.92.52250.125884.46.9+4.43.10.250.540.040.25(200+4)0.82.812.5589.9575.4+5.7461.60.

2、12525.1-0.23510.10.041.72.50.82.51.25960.83.52.1+3.57.92.50.470.40.24(100+5)85.11.252610.1681.8+6.8826.40.1253.97.1-0.395610.10.462.53.22512.5780.84.98+4.92250.540.40.27(200+4)8812.58310.1713.8+7.1620.812.55.92.1-0.591710.10.44.62.50.8250.125150.86.38.9+6.31.10.250.980.40.23(300+5)86.21.253210.1574.

3、2+5.7584.81.257.81.1-0.784110.10.049.4252.40.250.1253187.54.2+7.55.82.50.620.040.25(200+1)0.83.60.1255510.1164.7+1.6530.812.58.84.1-0.884310.142.42.52.42.51.251983.43.5+3.46.5250.4940.22(400+9)0.84.50.1256610.1334.3+3.3575.60.1258.27.1-0.82279.943.82.51.60.2512.52686.32.5+6.37.50.250.890.40.28(400+2

4、)85.612.5259.9465.4+4.6464.812.57.67.1-0.76389.941.9253.22512.54589.75.9+9.74.1250.740.22(200+4)86.512.53410.1724.1+7.2590.812.58.46.1-0.84199.941.1253.20.2512.58981.49.2+1.40.82.50.9840.24(400+3)89.70.1255010.1434.9+4.3510.812.59.98.1-0.994310.10.43.2252.42.512.55382.59.5+2.50.50.250.8740.24(100+5)

5、84.71.25379.9485.2+4.8487.212.53.19.1-0.31709.90.047.8253.60.251.256281.61.3+1.68.70.250.5740.27(500+4)86.312.5719.9644.2+6.4584.81.256.77.1-0.67769.947.70.253.6251.254787.85.8+7.84.20.250.60.40.28(500+5)0.89.10.125659.9824.8+8.2526.412.55.65.1-0.566210.10.041.5251.60.250.1251186.28.4+6.21.62.50.760.040.29(200+8)0.83.912.5519.9732.9+7.3713.21.257.76.1-0.77299.90.044.3253.22.50.1251689.86.4+9.83.60.250.6540.25(200+9)850.1259710.1463.6+4.6647.21.252.69.1-0.26929.942.62.52250.1257185.26.9+5.23.1250.80.40.24(200+5)0.84.112.56410.1