小数乘法简便计算强烈推荐159.docx

1、小数乘法简便计算强烈推荐1590.250.660.040.22(200+6)0.86.20.1254210.1121.7+1.2832.41.253.96.1-0.399510.10.49.22.50.80.251.25110.87.27.3+7.22.70.250.790.40.24(500+5)0.88.81.257510.1313.4+3.1663.212.53.66.1-0.368510.10.48.9251.22.512.58384.39.8+4.30.2250.6940.26(200+1)83.81.25499.9392.3+3.97780.1259.35.1-0.93689.94

2、3.40.250.42.51.257185.53.3+5.56.70.250.660.040.23(500+2)82.41.25859.9825.3+8.2471.60.1252.37.1-0.231910.147.92.51.60.250.1256582.11.9+2.18.1250.8940.22(300+8)82.212.5199.9951.9+9.5811.612.54.74.1-0.476510.140.92.51.20.251.25680.89.69.7+9.60.32.50.590.040.28(100+5)85.30.1251610.1855.2+8.5482.40.1253.

3、12.1-0.311710.10.048.60.251.22.50.125810.84.98.2+4.91.8250.940.040.22(200+6)83.40.1257510.1903.4+9660.812.57.81.1-0.785810.142.1254250.125350.80.54.3+0.55.70.250.9640.22(400+7)0.89.61.25519.9883.9+8.8614.80.1257.43.1-0.74779.945.9252.80.251.25870.80.27.7+0.22.32.50.540.040.24(500+5)0.89.212.5799.973

4、3.3+7.3670.81.255.37.1-0.534410.143.3252.4250.12520.82.26.6+2.23.42.50.730.040.26(100+4)87.60.1252110.1361.8+3.6826.40.1258.66.1-0.86889.90.45.62542512.59585.17.6+5.12.42.50.90.040.21(400+5)87.712.53510.1312.4+3.1760.80.1256.45.1-0.641610.1452542.51.25582.61.9+2.68.10.250.940.40.27(400+4)84.91.25221

5、0.1952.4+9.5763.20.1259.67.1-0.968710.10.040.90.253.62.51.253582.31.1+2.38.90.250.910.040.26(500+3)89.50.125999.9184.1+1.85981.253.39.1-0.336310.10.48.42.50.80.251.255688.51.9+8.58.1250.590.040.22(400+7)89.112.5329.9483.8+4.8620.812.56.93.1-0.69369.90.046.92.53.22.51.25160.88.37.4+8.32.6250.70.040.23(200+9)0.860.1254110.1254.8+2.5522.41.255.51.1-0.55939.941.20.253.6250.125530.83.33+3.370.250.8240.29(200+7)85.41.253610.1894.8+8.9525.60.12592.1-0.93710.140.60.251.60.250.125120.83.92.3+3.97.7250.840.40.25(100+8)0.83.512.5139.9514.2+5.1580.812.55.85.1-0.58729.9