小数乘法简便计算强烈推荐195.docx

1、小数乘法简便计算强烈推荐1950.250.510.40.29(200+9)0.87.50.125509.9232.2+2.37880.12559.1-0.5999.90.041.82.52.82512.520.85.69.3+5.60.7250.8140.26(500+5)85.11.252210.1154.5+1.5552.40.1257.98.1-0.79269.90.047.32.520.250.125360.83.57.2+3.52.80.250.610.040.21(100+4)0.89.312.57810.1423+4.2704.81.259.35.1-0.938910.10.04

2、9.30.251.20.2512.594845.6+44.42.50.8340.26(300+4)88.30.1254510.1252.5+2.5753.20.1256.53.1-0.652010.10.48.2250.82.51.258689.59.6+9.50.42.50.7440.25(100+5)87.51.25119.9672.3+6.7776.41.251.42.1-0.14269.90.045.30.252251.2515845.3+44.72.50.8540.28(400+2)86.51.25189.9474.5+4.7557.20.1252.17.1-0.21669.90.0

3、44.2253.62.512.5360.89.54+9.56250.9640.21(400+9)82.30.1259010.1224.4+2.2562.41.252.45.1-0.241210.10.41.60.252.42.512.5290.83.82.8+3.87.20.250.930.40.22(100+6)0.82.612.5149.9163.1+1.6695.60.1258.51.1-0.85399.90.48.42520.2512.5320.83.21.9+3.28.1250.480.040.21(500+5)82.812.5819.9533.1+5.3693.212.51.15.

4、1-0.11339.90.044.32522512.5570.86.14.4+6.15.62.50.670.40.21(200+2)83.60.1258210.1334.1+3.3595.60.1254.18.1-0.417510.10.048.60.2540.250.125830.84.18.7+4.11.30.250.690.40.23(100+5)0.82.21.256010.1323.5+3.26581.255.76.1-0.57749.90.045.92.540.2512.52280.58.7+0.51.32.50.570.40.22(300+8)84.212.5429.9471.9

5、+4.7815.612.56.67.1-0.668610.147.60.252.80.2512.5290.86.57.9+6.52.10.250.550.40.25(400+4)0.87.51.258510.1383.5+3.86580.1255.64.1-0.56179.90.45.72.50.40.251.2590.81.44.6+1.45.40.250.7140.23(200+6)8912.58510.1892.1+8.9795.60.1255.78.1-0.57509.90.045.22.53.22.50.1252884.86.9+4.83.12.50.950.40.24(300+1)0.83.81.258810.1554.5+5.5551.60.1251.15.1-0.117310.10.46.2251.22512.53788.94.6+8.95.42.50.5940.25(400+4)85.81.257210.1984.9+9.851412.58.38.1-0.83999.90.460.2520.250.1256789.26.2+9.23.8250.590.040.22(200+7)0.8412.56810.1935+9.3504.812.55.55.1-0.55569.9