题目内容
(1)-12012-[5×(-2)-(-4)2÷(-8)]
(2)(-72)×(
-
+
-
)
(2)(-72)×(
| 3 |
| 4 |
| 7 |
| 6 |
| 11 |
| 12 |
| 13 |
| 24 |
(1)原式=-1-[(-10)-16÷(-8)]
=-1-[(-10)+2]
=-1-(-8)
=7;
(2)原式=(-72)×
-(-72)×(
)+(-72)×
-(-72)×
=(-54)+84-66+39
=3.
=-1-[(-10)+2]
=-1-(-8)
=7;
(2)原式=(-72)×
| 3 |
| 4 |
| 7 |
| 6 |
| 11 |
| 12 |
| 13 |
| 24 |
=(-54)+84-66+39
=3.
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