题目内容
25.65-
-(
-0.75)
| 3 |
| 4 |
| 13 |
| 20 |
25.65-
-(
-0.75),
=25.65-0.75-0.65+0.75,
=(25.65-0.65)+(0.75-0.75),
=25.
| 3 |
| 4 |
| 13 |
| 20 |
=25.65-0.75-0.65+0.75,
=(25.65-0.65)+(0.75-0.75),
=25.
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