= | = | = | = |
= | = | = | = |
| 1.2×0.5= | 0.16÷0.8= | 0.32= | 53= |
解:
=1, | = , | = , | = , |
=1 , | = , | =1 , | =2, |
| 1.2×0.5=0.6, | 0.16÷0.8=0.2, | 0.32=0.027, | 53=125. |
分析:根据分数和小数加减法的计算方法进行计算.
点评:口算时,注意运算符号和数据,然后再进一步计算.
编辑:chaxungu时间:2026-04-27 11:44:52分类:小学数学题库
= | = | = | = |
= | = | = | = |
| 1.2×0.5= | 0.16÷0.8= | 0.32= | 53= |
解:
=1, | = , | = , | = , |
=1 , | = , | =1 , | =2, |
| 1.2×0.5=0.6, | 0.16÷0.8=0.2, | 0.32=0.027, | 53=125. |