题目内容
(
+
-
)÷(-
)
| 3 |
| 4 |
| 7 |
| 12 |
| 5 |
| 6 |
| 1 |
| 60 |
原式=(
+
-
)×(-60),
=-
×60-
×60+
×60,
=-45-35+50,
=-30.
| 3 |
| 4 |
| 7 |
| 12 |
| 5 |
| 6 |
=-
| 3 |
| 4 |
| 7 |
| 12 |
| 5 |
| 6 |
=-45-35+50,
=-30.
练习册系列答案
相关题目
题目内容
| 3 |
| 4 |
| 7 |
| 12 |
| 5 |
| 6 |
| 1 |
| 60 |
| 3 |
| 4 |
| 7 |
| 12 |
| 5 |
| 6 |
| 3 |
| 4 |
| 7 |
| 12 |
| 5 |
| 6 |