直接写出得数. - = | ÷ = | 9 ÷3= |
| 9.8÷0.7= | 3÷ ×3= | ÷5= |
×1.6= | 15×60%= | 25×40%= |
| 2÷100%= |
解: - = , | ÷ = , | 9 ÷3=3 , |
| 9.8÷0.7=14, | 3÷ ×3=27, | ÷5= , |
×1.6=1.2, | 15×60%=9, | 25×40%=10, |
| 2÷100%=2. |
分析:根据分数、小数和百分数加减乘除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 11:26:25分类:小学数学题库
直接写出得数. - = | ÷ = | 9 ÷3= |
| 9.8÷0.7= | 3÷ ×3= | ÷5= |
×1.6= | 15×60%= | 25×40%= |
| 2÷100%= |
解: - = , | ÷ = , | 9 ÷3=3 , |
| 9.8÷0.7=14, | 3÷ ×3=27, | ÷5= , |
×1.6=1.2, | 15×60%=9, | 25×40%=10, |
| 2÷100%=2. |