1、小数乘法简便计算强烈推荐299391.5+3.9852.40.1259.89.1-0.987910.10.47.4251.62.50.1254783.77.6+3.72.42.50.990.40.27(300+1)88.612.5479.9392+3.9803.21.259.87.1-0.981710.10.048.22.50.80.251.25280.35.4+0.34.60.250.940.29(300+8)0.89.40.125629.9364.4+3.6561.61.2532.1-0.34910.10.45.82.51.2250.125660.89.65.4+9.64.60.250.6
2、70.040.25(100+5)0.88.31.25989.9783.6+7.8645.61.256.59.1-0.65149.90.49.5252.80.2512.5384.52.2+4.57.82.50.9940.23(300+1)89.412.5769.9982+9.880412.581.1-0.83710.10.44.9250.40.2512.5170.83.95.8+3.94.2250.7140.23(500+2)85.212.53710.1821.6+8.2842.412.53.59.1-0.35669.90.46.7250.82.512.5700.80.46.1+0.43.92.
3、50.60.40.29(200+4)0.89.31.25549.9572+5.7805.612.55.68.1-0.561410.10.47.5252251.2580.82.88.8+2.81.20.250.490.040.24(400+4)0.87.51.257510.1623.6+6.2644.81.254.62.1-0.46239.949.9253.22.51.25500.84.19.3+4.10.72.50.890.40.26(400+8)87.40.1252010.1813.3+8.167812.55.79.1-0.574410.10.049.82.50.82.51.25170.82
4、.92.5+2.97.5250.8840.23(100+3)0.86.91.259110.1162.8+1.6720.812.566.1-0.62410.10.44.1253.22.512.51483.22.3+3.27.72.50.710.040.29(400+2)0.86.10.125739.9781.7+7.8830.812.59.79.1-0.974910.10.045.20.251.2251.25670.89.14.8+9.15.22.50.7840.24(400+4)87.40.125589.9972.5+9.7757.212.51.53.1-0.158710.145.4252.8
5、2.51.256381.32.1+1.37.90.250.830.040.26(100+7)0.87.412.5399.9512+5.1803.21.2562.1-0.66510.10.046.3253.20.2512.5660.85.96.4+5.93.60.250.630.040.23(500+2)0.86.312.51410.1945.4+9.4467.21.259.12.1-0.919010.10.49.4252.42.50.125670.87.11.9+7.18.1250.5240.28(500+2)0.85.81.257110.1211.5+2.1854.80.1259.66.1-0.96759.90.044.32.522.50.125190.86.58.9+6.51.1250.570.040.23(200+1)83.412.51510.1945.5+9.4454.80.1258.61.1-0.86209.90.046.2253.60.250.1258871.4+78.62.50.620.40.23(400+6)0.86.61.257710.1533.4+5.3660.81.251.98.1-0.195010.10.412.520.2512.58884.99.7+4.90.3
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