小数乘除法简便计算专项训练(共1页).doc

小数乘除法简便计算专项训练0.7540.254 9.6+9.699 4.5360.80.1252.83.6+1.42.8 6.310.1 3.50.75.50.70.717.8(1.784) 9.7100.1 15613115.615.62.1 (45.932.7)80.125 3.63.60.8 60.481.20.481.2 9.129.1296.02 21.87.222.78 0.250.80.1250.4 12.7514.6（1.38.2） （0.252.525）4 0.12536（40.5）36