- = | ÷12= | 15× = | 36÷ = | + = | ×12= |
÷ = | × = | × ×16= | 1÷ ÷ = | ÷2÷ = | ×9÷ ×9= |
- = , | ÷12= , | 15× =9, | 36÷ =81, | + = , | ×12= , |
÷ =4, | × = , | × ×16=4, | 1÷ ÷ = , | ÷2÷ =3, | ×9÷ ×9=81. |
分析:根据分数加减乘除法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 07:43:41分类:小学数学题库
- = | ÷12= | 15× = | 36÷ = | + = | ×12= |
÷ = | × = | × ×16= | 1÷ ÷ = | ÷2÷ = | ×9÷ ×9= |
- = , | ÷12= , | 15× =9, | 36÷ =81, | + = , | ×12= , |
÷ =4, | × = , | × ×16=4, | 1÷ ÷ = , | ÷2÷ =3, | ×9÷ ×9=81. |