小数乘法简便计算【习题】.doc

小数乘法简便计算【练习】小数乘法简便计算（一）0.258.54 12.50.960.8 0.250.7344.3612.580.2516.24 1.252.532 3.20.2512.5 0.2536(1.250.125)8 4.810.1 3.6102 0.391990.32403 3.6510.1 0.859.9 3.723.56.283.515.62.115.61.1 4.87.8780.52 56.59956.5小数乘法简便计算（二）7.0910.80.87.09 1.879.90.187 4.2994.23.834.563.835.44 9.7999.7 27.53.77.53.73.140.6831.40.032 7.20.22.41.4 5.411-5.47.74（2.81.3）1.52.26 3.92.73.97.3 12.79.91.272.316+2.323+2.3 3.654.736.50.37 1010.87-0.9187小数乘法简便计算（三）46572386 10.716.1-15.110.7 7.60.80.27.61.288.60.728.6 10.60.359.60.35 8.91.01 0.65101480.56440.48 0.2793430.657279 0.2645192640.4819.161.530.05391.6 0.12596 12.510.8 （204）0.254521502.1 451.585.515.8 257.30.4小数乘法简便计算（四）5310.14.26.513.494.2 257.30.42.73.7+0.37730.1259612.510.8 （204）0.253.6510.14521502.1 451.585.515.8 9.992.223.333.343.71.40.05 720.81+10.4 1.425+3.451.51021.250.70.8 7.60.80.27.60.859.91.288.60.728.612.50.960.810.60.359.60.35小数乘法简便计算（五）8.7990.8（12.51.25）1.250.4802.5 1.252.532 51.030.2321.250.459915.62.115.61.10.2516.24(1.250.125)84.810.1 3.61023.723.56.283.5 1.879.90.1874.2994.24.87.8780.52 56.59956.5 7.0910.80.87.093.834.563.835.444.3612.589.7999.7小数乘法简便计算（六）27.53.77.53.73.20.2512.5 0.25360.250.7343.140.6831.40.0327.20.22.41.48.91.010.651017.74（2.81.3）1.52.263.92.73.97.312.79.91.275.411-5.42.316+2.323+2.33.654.736.50.37465723862.