题目内容
计算:
(1)
×
-5;
(2)
-10
+
.
(1)
| 12 |
| 3 |
(2)
| 40 |
|
| 10 |
(1)原式=
-5=6-5=1;
(2)原式=2
-10×
+
=2
-
+
=2
.
| 12×3 |
(2)原式=2
| 10 |
| ||
| 10 |
| 10 |
=2
| 10 |
| 10 |
| 10 |
=2
| 10 |
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题目内容
| 12 |
| 3 |
| 40 |
|
| 10 |
| 12×3 |
| 10 |
| ||
| 10 |
| 10 |
| 10 |
| 10 |
| 10 |
| 10 |