题目内容
(1)(3+2
)2-(4+
)(4-
) (2)(3
-2
+
)÷2
.
| 5 |
| 5 |
| 5 |
| 12 |
|
| 48 |
| 3 |
(1)原式=9+12
+20-(16-5)
=18+12
;
(2)原式=(6
-
+4
)÷2
=
.
| 5 |
=18+12
| 5 |
(2)原式=(6
| 3 |
2
| ||
| 3 |
| 3 |
| 3 |
=
| 14 |
| 3 |
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题目内容
| 5 |
| 5 |
| 5 |
| 12 |
|
| 48 |
| 3 |
| 5 |
| 5 |
| 3 |
2
| ||
| 3 |
| 3 |
| 3 |
| 14 |
| 3 |