题目内容
(1)-2
-(+2
)-(-3
)+(-1
)
(2)(-2)3×(-1)2014-|-12|÷(-
).
| 7 |
| 8 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 8 |
(2)(-2)3×(-1)2014-|-12|÷(-
| 1 |
| 2 |
(1)-2
-(+2
)-(-3
)+(-1
)
=-2
+(-1
)-(+2
)-(-3
)
=-4+1
=-2
;
(2)(-2)3×(-1)2014-|-12|÷(-
)
=-8×1+12×2
=-8+24
=16.
| 7 |
| 8 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 8 |
=-2
| 7 |
| 8 |
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 2 |
=-4+1
| 1 |
| 4 |
=-2
| 3 |
| 4 |
(2)(-2)3×(-1)2014-|-12|÷(-
| 1 |
| 2 |
=-8×1+12×2
=-8+24
=16.
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