题目内容
计算:
(1)(
+
-
)×12+12÷(
+
);
(2)5÷(
-2
-2)×6.
(1)(
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
(2)5÷(
| 1 |
| 3 |
| 1 |
| 2 |
(1)原式=3+4-6+12×
=1+16
=17;
(2)原式=5÷(-
)×6
=-5×
×6
=-
.
| 4 |
| 3 |
=1+16
=17;
(2)原式=5÷(-
| 25 |
| 6 |
=-5×
| 6 |
| 25 |
=-
| 36 |
| 5 |
练习册系列答案
相关题目