题目内容
计算:
(1)4
+
-
+4
(2)(5
-6
+4
)÷
.
(1)4
| 5 |
| 45 |
| 8 |
| 2 |
(2)(5
| 48 |
| 27 |
| 15 |
| 3 |
(1)原式=4
+3
-2
+4
=7
+2
;
(2)原式=5
-6
+4
=5
-6
+4
=20-18+4
=2+4
.
| 5 |
| 5 |
| 2 |
| 2 |
=7
| 5 |
| 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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