题目内容
计算:
(1)3-(-8)+6;
(2)18-6÷(-3)×(-2);
(3)-14-[2-(-3)2];
(4)(-1)6-16×(
-
)÷
-|-2|;
(5)[(-3)2-22-(-5)2]×(
÷
)×(-2)4.
(1)3-(-8)+6;
(2)18-6÷(-3)×(-2);
(3)-14-[2-(-3)2];
(4)(-1)6-16×(
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
(5)[(-3)2-22-(-5)2]×(
| 5 |
| 6 |
| 4 |
| 9 |
(1)原式=3+8+6
=17.
(2)原式=18+2×(-2)
=18-4
=14.
(3)原式=-1-[2-9]
=-1+7
=6.
(4)原式=1-1×
÷
-2
=1-
-2
=-
.
(5)原式=[9-4-25]×(
×
)×16
=-20×
×16
=-600.
=17.
(2)原式=18+2×(-2)
=18-4
=14.
(3)原式=-1-[2-9]
=-1+7
=6.
(4)原式=1-1×
| 1 |
| 6 |
| 1 |
| 3 |
=1-
| 1 |
| 2 |
=-
| 3 |
| 2 |
(5)原式=[9-4-25]×(
| 5 |
| 6 |
| 9 |
| 4 |
=-20×
| 15 |
| 8 |
=-600.
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