小数乘法简便计算强烈推荐207.docx

1、小数乘法简便计算强烈推荐207250.950.040.21(100+5)89.812.5489.9572.5+5.7750.81.256.91.1-0.69899.90.42.5251.60.251.25110.87.77+7.732.50.640.40.27(400+5)84.90.125629.9702.5+7755.60.1256.21.1-0.62789.90.043.40.2522.512.58284.39.6+4.30.42.50.940.27(500+8)83.41.255010.1432.2+4.37840.1259.22.1-0.92339.940.90.252.80.251

2、.25670.80.21.1+0.28.92.50.820.40.24(200+6)89.41.258610.1292.3+2.9776.412.53.79.1-0.373010.10.047.5253.22.512.52282.72.3+2.77.72.50.690.040.27(400+9)0.83.71.257310.1201.8+28240.1252.66.1-0.26439.90.42.3251.22.51.25110.87.35.7+7.34.30.250.670.40.25(100+8)0.84.91.251510.1513.4+5.1666.412.58.23.1-0.8280

3、10.10.049.90.251.62.50.125570.86.71.8+6.78.20.250.690.40.25(200+8)88.30.125709.9811.2+8.1887.21.257.81.1-0.784110.10.42.82.542.512.53985.71.8+5.78.2250.460.040.26(100+8)0.84.31.25459.9523.7+5.2631.60.1258.63.1-0.866810.10.42.20.252.82512.53683.13.4+3.16.60.250.910.040.27(100+1)86.312.5379.9561.7+5.6

4、8341.2563.1-0.68910.145.50.251.20.250.1255889.27.9+9.22.1250.4740.29(200+2)85.11.25529.9512.9+5.1710.80.1257.53.1-0.75159.944.40.250.40.250.125150.87.98.5+7.91.5250.9440.27(300+6)89.90.125909.9363.3+3.6674.812.57.55.1-0.756910.140.2251.22.51.253083.45.9+3.44.1250.530.040.25(500+1)0.84.80.1252010.155

5、4.2+5.5582.41.259.78.1-0.972910.10.45.92.51.20.2512.5140.85.85.7+5.84.30.250.740.25(500+1)0.86.50.1256610.1344.4+3.45641.255.77.1-0.579310.10.046.1251.20.2512.58583.26.8+3.23.22.50.9840.28(100+4)0.89.60.125869.9624+6.2604.80.12534.1-0.3529.90.047.42.542.512.52184.91.7+4.98.30.250.9740.22(200+5)881.251810.1221.6+2.2840.81.256.68.1-0.663710.1422.50.42.51.251182.63.3+2.66.70.250.740.040.27(500+8)85.312.5779.9694+6.9604.81.251.31.1-0.13349.90.44.90.252.42512.5940.81.13.7+1.16.3250.520.040.25(400+9)87.21.254210.1263.3+2.6676.41.259.34.1-0.938710.1