小数乘法简便计算强烈推荐154.docx

1、小数乘法简便计算强烈推荐15441.82.53.22.51.255482.61.9+2.68.12.50.830.040.25(400+7)89.11.252610.1393.4+3.966812.54.33.1-0.436710.149.52542.50.125710.89.46.3+9.43.72.50.4740.21(400+3)87.60.1256310.1405+45041.256.12.1-0.613010.10.432.53.2251.257487.76.6+7.73.40.250.710.40.23(300+8)0.82.71.25899.9351.5+3.5856.40.12

2、54.51.1-0.45719.90.040.7250.42.50.125390.84.65.7+4.64.3250.6940.25(300+4)87.30.1251410.1841.9+8.4814.81.255.91.1-0.59339.90.43.2250.40.2512.5200.80.94.6+0.95.42.50.820.40.24(100+9)0.84.30.125889.9333.4+3.3660.80.1253.71.1-0.37629.90.49.52.540.251.25960.82.83.6+2.86.40.250.840.22(400+6)88.212.5479.94

3、72+4.7807.21.258.87.1-0.881610.10.048.12542512.5920.89.88.3+9.81.7250.620.040.27(400+1)84.91.253110.1525.2+5.2483.21.256.93.1-0.69969.949251.62.51.251180.45.4+0.44.62.50.710.040.22(100+9)0.89.21.254110.1652.6+6.5743.21.254.55.1-0.452810.144.42.51.2251.25430.83.52.5+3.57.5250.680.40.23(200+4)87.21.25

4、6110.1151.7+1.5835.60.12579.1-0.74710.145.62.52.80.250.1258680.25.1+0.24.9250.9140.26(100+6)0.87.212.58110.1914.3+9.1573.21.254.54.1-0.45889.90.43.40.251.22.50.1259686.16.4+6.13.60.250.950.40.23(400+4)0.87.312.5559.9405.5+4457.20.1257.49.1-0.74239.90.047.5253.62512.5890.83.87.7+3.82.32.50.7240.28(20

5、0+9)84.80.125759.9562.9+5.6712.40.1255.92.1-0.595110.147.10.252.40.250.12552835.1+34.90.250.780.040.25(100+4)0.82.71.256410.1252.7+2.57341.255.26.1-0.527310.10.040.30.250.82512.52286.27.3+6.22.7250.7540.25(500+6)840.125519.9535.3+5.3472.412.52.95.1-0.293810.10.049.10.250.8251.25660.815.1+14.90.250.740.40.28(500+2)87.80.125389.9213+2.1706.41.257.53.1-0.75759.90.42.2253.22.512.590.88.99.8+8.90.20.250.930.40.27(400+1)0.85.412.52710.1524.8+5.2527.20.1254.98.1-0.499810.10.042.40.251.20.2512.58283.18.6+3.11.42.50.510.40.25(400+7)89.51.251710.1