| 直接写出下面各题的得数. 0.5×0.4= | 3+2.3= | 0.22= | 15-0.15= |
| 28+32= | = | = | 5÷5%= |
= | = | = | = |
| 0.5×0.4=0.2, | 3+2.3=5.3, | 0.22=0.04, | 15-0.15=14.85, |
| 28+32=60, | =0, | = , | 5÷5%=100, |
= , | = , | = , | =8 . |
分析:根据小数、整数、分数和百分数的加减乘除的计算方法进行计算即可.
点评:口算时,注意运算符号和数据.
编辑:chaxungu时间:2026-04-27 08:21:30分类:小学数学题库
| 直接写出下面各题的得数. 0.5×0.4= | 3+2.3= | 0.22= | 15-0.15= |
| 28+32= | = | = | 5÷5%= |
= | = | = | = |
| 0.5×0.4=0.2, | 3+2.3=5.3, | 0.22=0.04, | 15-0.15=14.85, |
| 28+32=60, | =0, | = , | 5÷5%=100, |
= , | = , | = , | =8 . |