小数乘法简便计算强烈推荐208.docx

1、小数乘法简便计算强烈推荐2080.48.60.250.80.2512.5200.83.97.1+3.92.92.50.790.040.26(100+3)0.87.71.25949.9792.4+7.9765.61.251.42.1-0.145010.148.50.250.82.51.257685.56.3+5.53.72.50.9440.26(300+2)0.82.812.56010.1502+5806.40.1259.81.1-0.985810.10.047.52.52.8250.1251384.85.6+4.84.40.250.930.40.23(500+6)83.40.1256710.1

2、954+9.5607.212.585.1-0.8789.9460.252.80.250.125180.89.28.7+9.21.30.250.50.40.24(500+6)0.88.412.59410.1554.9+5.5516.41.251.56.1-0.157110.10.047.9252.82.512.5320.81.89.9+1.80.12.50.450.40.22(500+5)0.87.80.1258810.1623.1+6.26981.253.37.1-0.33639.944.4252.40.250.125720.88.77.4+8.72.62.50.510.040.24(200+

3、9)82.71.25719.9282.5+2.8751.60.1255.77.1-0.579910.149.2254251.25900.81.45.2+1.44.82.50.710.40.22(500+4)0.86.70.125919.9631.3+6.38740.1257.46.1-0.74649.943.7252.4250.125750.83.96.9+3.93.1250.680.40.21(400+7)0.82.70.1253410.1235+2.3504.812.54.91.1-0.49899.90.42.50.253.22.50.125920.82.55.1+2.54.90.250.

4、70.040.21(500+7)0.8412.52710.1364.2+3.6581.61.259.18.1-0.91519.90.044.52.51.62512.5110.87.55.7+7.54.3250.530.40.23(200+2)0.861.257810.1953.8+9.5625.60.1251.86.1-0.184310.10.46.2251.6251.25140.876+74250.880.40.29(300+1)83.912.51410.1434.8+4.35280.1251.85.1-0.183010.10.40.52.540.2512.55484.28.7+4.21.3

5、2.50.920.040.21(400+4)86.512.5199.9764.9+7.6512.40.12574.1-0.7569.941.42.520.251.252182.83.6+2.86.4250.5540.29(100+1)0.82.40.1253710.1552.4+5.57640.1255.45.1-0.54969.942.80.250.40.2512.5340.84.49.8+4.40.20.250.60.40.21(400+3)0.860.1257310.1354.4+3.5561.612.51.29.1-0.12669.945.40.252.40.250.1253287.14.9+7.15.10.250.70.40.26(300+1)8412.5979.9174.1+1.75941.255.74.1-0.57119.942.22.53.22.51.255483.54.2+3.55.82.50.4540.25(300+8)0.86.80.125399.9992.3+9.97781.2558.1-0.59410.10.047.42.52251.2537884.9+85.12.50.640.040.29(400+5)0.88.41.257210.1