题目内容
喝牛奶.
200-200×
-(200-200×
)×
,
=200-50-(200-50)×
,
=200-50-150×
,
=200-50-50,
=100(克),
答:这时瓶中剩下100克牛奶.
1 |
4 |
1 |
4 |
1 |
3 |
=200-50-(200-50)×
1 |
3 |
=200-50-150×
1 |
3 |
=200-50-50,
=100(克),
答:这时瓶中剩下100克牛奶.
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