| 24×50%= | = | 5.8-0.89= | 3.9×1.1= |
= | = | = | ( + )+ ×4= |
| 24×50%=12, | = , | 5.8-0.89=4.91, | 3.9×1.1=4.29, |
=11, | = , | = , | ( + )+ ×4=3 . |
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:2026-04-26 08:53:50分类:小学数学题库
| 24×50%= | = | 5.8-0.89= | 3.9×1.1= |
= | = | = | ( + )+ ×4= |
| 24×50%=12, | = , | 5.8-0.89=4.91, | 3.9×1.1=4.29, |
=11, | = , | = , | ( + )+ ×4=3 . |