题目内容
计算
(1)4
-12
+3
(2)(
÷
+
)×
.
(3)(2
-
)÷
+2
.
(1)4
| 6 |
|
| 8 |
(2)(
| 6 |
| 3 |
| 8 |
| 2 |
(3)(2
| 24 |
| 18 |
| 3 |
|
(1)原式=4
-6
+6
=4
;
(2)原式=(
+2
)×
=3
×
=6;
(3)原式=2
-
+
=2
-
+
=4
-
+
.
| 6 |
| 2 |
| 2 |
| 6 |
(2)原式=(
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |
(3)原式=2
| 24÷3 |
| 18÷3 |
| 3 |
| 8 |
| 6 |
| 3 |
| 2 |
| 6 |
| 3 |
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