题目内容
用简便方法计算。
|
| (1) = = = |
(2)18× =(18+5)× =11+60% =11.6 |
| (3)75%-[(100%- =75%-(1×25%- = = |
(4) = =1-35% =0.65 |
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题目内容
用简便方法计算。
|
| (1) = = = |
(2)18× =(18+5)× =11+60% =11.6 |
| (3)75%-[(100%- =75%-(1×25%- = = |
(4) = =1-35% =0.65 |