题目内容
7
-3.36+5.625-5
.
| 3 |
| 8 |
| 16 |
| 25 |
7
-3.36+5.625-5
,
=7
-3
+5
-5
,
=(7
+5
)-(3
+5
),
=13-9,
=4.
| 3 |
| 8 |
| 16 |
| 25 |
=7
| 3 |
| 8 |
| 9 |
| 25 |
| 5 |
| 8 |
| 16 |
| 25 |
=(7
| 3 |
| 8 |
| 5 |
| 8 |
| 9 |
| 25 |
| 16 |
| 25 |
=13-9,
=4.
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