小数乘法简便计算强烈推荐28.docx

1、小数乘法简便计算强烈推荐280.460.250.42512.51683.69+3.61250.850.40.26(300+4)0.82.912.56010.1812.7+8.1736.412.598.1-0.9999.90.040.80.253.62512.561811.2+18.82.50.970.40.28(100+1)0.87.30.1252010.1923+9.27040.1253.88.1-0.38189.90.045.62.51.2251.25480.73.4+0.76.62.50.860.040.24(400+3)87.60.1259410.1624.9+6.25140.1254

2、.87.1-0.48859.90.490.253.62.512.54982.64.5+2.65.5250.6440.22(300+8)0.85.112.5709.9894.8+8.9525.612.51.78.1-0.176410.10.45.3251.20.2512.51182.78.4+2.71.62.50.7540.28(200+9)890.1257410.1643+6.4700.80.1252.96.1-0.29559.90.45.52.520.2512.57889.59.1+9.50.92.50.8940.29(200+9)0.85.412.56910.1725.3+7.2476.4

3、0.1259.39.1-0.93839.949.20.251.6251.25780.81.91.5+1.98.52.50.640.40.27(500+2)87.51.255910.1853.5+8.5653.20.1254.22.1-0.42299.90.041.7250.80.251.254785.36.6+5.33.4250.680.40.23(300+5)82.31.256810.1154.5+1.5553.212.583.1-0.8429.90.42.32520.251.25650.83.68.8+3.61.20.250.910.040.28(300+6)88.50.1254610.1

4、442.2+4.4784.81.254.79.1-0.479410.149.32.52.8250.1254786.17.5+6.12.50.250.930.040.27(500+1)88.91.259010.1232.2+2.3787.21.258.67.1-0.865210.10.048.82.54251.25830.84.35.8+4.34.20.250.520.40.29(200+9)89.212.5869.9791.1+7.9890.812.53.15.1-0.311310.10.049.3252.82.51.253788.54.8+8.55.2250.840.040.29(100+9

5、)82.712.5699.9815.3+8.1474.812.52.43.1-0.24399.90.0480.253.6251.255381.87.5+1.82.52.50.750.040.24(100+7)84.40.1252610.1413.9+4.161812.53.76.1-0.37609.90.492.54250.125570.88.99.7+8.90.30.250.8340.28(200+1)0.88.312.53610.1223.6+2.26440.1257.39.1-0.738810.147.50.251.22.512.59886.94.5+6.95.52.50.520.040.28(300+8)83.312.5889.9775.5+7.7453.21.253.53.1-0.35499.944252.82.50.125690.81.77.4+1.72.6250.80.040.25(200+7)0.87.50.1258610.1862.6+8.6742.41.256.37.1-0.63649.90.46.90.253.62512.5300.82.46.3+2.43.70.250.830.40.26(300+9)86.31.25159.9