题目内容
计算:
(1)(-
)-1+(+8)0-22012×(-
)2011
(2)5a2b-(-2ab3)+3ab-(4a2b3)
(1)(-
| 1 |
| 3 |
| 1 |
| 2 |
(2)5a2b-(-2ab3)+3ab-(4a2b3)
(1)原式=-3+1-[2×(-
)]2011×2
=-3+1+2
=0;
(2)原式=-10a3b4+12a3b4
=2a3b4.
| 1 |
| 2 |
=-3+1+2
=0;
(2)原式=-10a3b4+12a3b4
=2a3b4.
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