小数乘法简便计算强烈推荐56.docx

1、小数乘法简便计算强烈推荐56431.9+4.3810.81.251.38.1-0.139510.10.0432522512.5740.83.31.8+3.38.20.250.650.040.21(300+9)0.85.11.25349.9752.9+7.5717.20.1254.21.1-0.426010.146.70.252.40.250.125880.85.15.8+5.14.20.250.490.40.24(100+8)0.8312.5149.9821.8+8.2826.412.54.69.1-0.46839.90.047.22.51.60.250.1255985.25.5+5.24.5

2、250.480.40.27(200+7)0.86.512.5799.9424.9+4.25181.256.48.1-0.64669.90.048.80.251.20.2512.55781.23.2+1.26.8250.9140.23(100+8)84.60.125699.9841.7+8.4832.40.1257.64.1-0.762910.149.40.251.22.50.125940.86.42.3+6.47.7250.5940.25(100+9)85.40.1257810.1893.1+8.96940.1253.26.1-0.32979.942.5253.20.251.254581.68

3、.2+1.61.8250.510.40.26(100+2)85.412.54410.1581.1+5.88981.252.56.1-0.251610.10.40.60.253.22.51.256485.41.7+5.48.32.50.850.040.25(200+9)0.86.712.55110.1591.7+5.9832.41.251.88.1-0.18989.90.40.7253.60.250.1257684.89.2+4.80.80.250.950.40.26(300+3)0.83.80.125889.9571.1+5.7890.812.57.17.1-0.711610.148.6253

4、.62.51.2590.82.49.3+2.40.72.50.770.040.28(400+9)0.85.512.57310.1494.3+4.9570.812.58.19.1-0.813510.10.045.22.52.40.250.125460.88.13.4+8.16.6250.840.25(400+8)84.20.125759.9794.1+7.9594.80.1254.21.1-0.421310.10.042251.6250.125370.87.26.7+7.23.32.50.490.040.24(500+5)85.41.257210.1492.3+4.9777.212.55.42.

5、1-0.549610.10.045.5252.80.2512.52181.68.3+1.61.70.250.830.40.21(300+5)0.84.81.25919.9153+1.57080.1252.48.1-0.248310.10.046.62.50.8250.125280.81.74.9+1.75.12.50.520.040.26(500+8)0.82.31.254310.1392.1+3.97941.252.74.1-0.27749.90.049.6251.62.51.254782.91.2+2.98.80.250.870.40.21(100+3)0.82.812.5609.9502.6+5744.80.1256.76.1-0.672410.148.80.254251.25320.86.94.1+6.95.9250.4540.21(400+2)83.50.1256310.1563.3+5.6673.212.58.25.1-0.82989.943.90.252.8251.25950.86.67.7+6.62.30.250.920.40.22(100+7)84.412.54210.1414.2+4.1586.41.251.33.1-0.13629.90.042.1252.8250.125560.85.46.3+5.43.7