题目内容
计算
(1)-9+12-3+8
(2)3-
×(8-1
-
)
(3)-24-(-5
)×
+(-2)3
(4)(-2)3-2×(-3)+|2-5|-(-1)2010.
(1)-9+12-3+8
(2)3-
| 3 |
| 4 |
| 1 |
| 3 |
| 14 |
| 15 |
(3)-24-(-5
| 1 |
| 2 |
| 4 |
| 11 |
(4)(-2)3-2×(-3)+|2-5|-(-1)2010.
(1)原式=3-3+8
=8;
(2)原式=3-
×8+
×
+
×
=3-6+1+
=-2+
=-1.3;
(3)原式=-16+
×
-8
=-16+2-8
=-22;
(4)原式=-8+6+3-1
=0.
=8;
(2)原式=3-
| 3 |
| 4 |
| 3 |
| 4 |
| 4 |
| 3 |
| 3 |
| 4 |
| 14 |
| 15 |
=3-6+1+
| 7 |
| 10 |
=-2+
| 7 |
| 10 |
=-1.3;
(3)原式=-16+
| 11 |
| 2 |
| 4 |
| 11 |
=-16+2-8
=-22;
(4)原式=-8+6+3-1
=0.
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