题目内容
计算:
(1)(2
-3
)×
;
(2)(5
-6
+4
)÷
.
(1)(2
| 12 |
|
| 6 |
(2)(5
| 48 |
| 27 |
| 15 |
| 3 |
(1)原式=2
×
-3
×
=2
-3
=12
-3
=9
;
(2)原式=5
÷
-6
÷
+4
÷
=5
-6
+4
=20-18+4
=2+4
.
| 12 |
| 6 |
|
| 6 |
=2
| 72 |
| 2 |
=12
| 2 |
| 2 |
=9
| 2 |
(2)原式=5
| 48 |
| 3 |
| 27 |
| 3 |
| 15 |
| 3 |
=5
| 16 |
| 9 |
| 5 |
=20-18+4
| 5 |
=2+4
| 5 |
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