+ = | = | 8.7-4.8= | 1.25×2.4= |
| 9.3:0.03= | 38÷4= | = | 1÷ = |
解: + = , | =2 , | 8.7-4.8=3.9, | 1.25×2.4=3, |
| 9.3:0.03=310, | 38÷4=9.5, | = , | 1÷ = . |
分析:根据分数和小数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,然后再进一步计算即可.
编辑:chaxungu时间:2026-04-27 08:26:40分类:小学数学题库
+ = | = | 8.7-4.8= | 1.25×2.4= |
| 9.3:0.03= | 38÷4= | = | 1÷ = |
解: + = , | =2 , | 8.7-4.8=3.9, | 1.25×2.4=3, |
| 9.3:0.03=310, | 38÷4=9.5, | = , | 1÷ = . |