小数乘法简便计算强烈推荐42.docx

1、小数乘法简便计算强烈推荐42250.690.040.23(300+4)0.88.70.1255610.1141.1+1.4895.61.253.19.1-0.31799.90.42252250.1257188.58.1+8.51.92.50.520.040.26(300+5)0.82.812.58210.1473.4+4.7660.81.257.98.1-0.79489.945.92540.250.125684.14+4.162.50.980.40.24(400+5)0.84.50.125409.9522.8+5.2727.20.1255.49.1-0.54639.90.43.52.53.60

2、.251.253981.88.1+1.81.92.50.6840.29(400+1)0.87.812.57010.1513.5+5.1656.40.1253.36.1-0.33789.90.42.30.254251.25320.827.1+22.90.250.970.040.28(500+8)0.88.412.5359.9135.1+1.349412.586.1-0.8749.941.40.2542512.5100.85.64.5+5.65.52.50.6240.26(100+1)0.84.51.25839.9285+2.85040.1256.14.1-0.619110.142.52542.5

3、0.125820.88.69.9+8.60.10.250.760.40.26(300+5)89.30.1253610.1352.5+3.575412.54.54.1-0.459510.10.041.90.252.80.250.125230.84.25.4+4.24.60.250.650.040.24(100+8)85.90.125269.9245.3+2.4476.412.54.76.1-0.47429.90.043.22.50.8250.1259280.79.5+0.70.52.50.9240.22(400+1)0.87.91.25229.9223.1+2.2694.81.252.53.1-

4、0.25899.949.32.52.8250.1253981.95.6+1.94.4250.830.40.27(200+7)82.60.1259610.1621.6+6.28480.1252.96.1-0.295110.149.1253.62512.530.80.23.1+0.26.9250.930.040.21(500+4)0.82.30.125999.9421.8+4.28281.2572.1-0.7779.9492.50.82.51.25940.85.56.8+5.53.22.50.610.40.22(400+4)0.871.251510.1294.2+2.9582.412.59.74.

5、1-0.97789.90.45.52.52.4251.25620.85.14+5.16250.8540.24(400+2)86.612.53310.1254.1+2.5597.21.253.79.1-0.37819.90.044.50.252.8251.255880.56.1+0.53.9250.8840.26(100+5)0.84.71.25559.9173.6+1.764412.51.39.1-0.13539.947.20.253.2250.125690.81.18+1.122.50.5340.22(100+3)0.84.212.56010.1332.2+3.3785.60.1253.12.1-0.31289.90.042.12.52250.125988.76.5+8.73.5250.780.40.22(200+2)85.612.54910.1445.3+4.44741.258.15.1-0.81969.90.49.60.251.2251.25200.80.42.8+0.47.2250.8140.28(500+4)83.61.258010.1801.4+886412.578.1-0.78210.1