五年级数学小数乘法的简便计算班级_姓名_ 一、复习巩固：10.1 0.78 3.51.013.80.99 4.89.93.59.8 2.51.25 0.322.963.53.50.96 20.99.920.90.1 例 1： 7.94.5+790.557.94.5（7910）（0.5510）7.94.57.95.57.9（4.55.5）7.91079练习：6.50.99+0.0651 37.83.4+3780.56+37.8例 2：0.555550.9+0.111110.50.555550.90.11111（50.1）0.555550.9（0.111115）0.10.555550.90.555550.10.55555（0.90.1）0.5555510.55555练习：0.7770.70.1112.10.880.30.222.80.90.60.34.2
