+ = | ÷ = | 1-5÷8= | × = | × = |
| 0.9+99×0.9= | 1÷0.6= | 14÷35= | ÷ × ÷ = | 17.3÷1.73= |
+ = , | ÷ = , | 1-5÷8= , | × = , | × = , |
| 0.9+99×0.9=90, | 1÷0.6= , | 14÷35=0.4, | ÷ × ÷ =1, | 17.3÷1.73=10. |
分析:根据分数和小数加减乘除法的计算方法进行计算即可;0.9+99×0.9根据乘法分配律进行简算.
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 09:58:05分类:小学数学题库
+ = | ÷ = | 1-5÷8= | × = | × = |
| 0.9+99×0.9= | 1÷0.6= | 14÷35= | ÷ × ÷ = | 17.3÷1.73= |
+ = , | ÷ = , | 1-5÷8= , | × = , | × = , |
| 0.9+99×0.9=90, | 1÷0.6= , | 14÷35=0.4, | ÷ × ÷ =1, | 17.3÷1.73=10. |