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> 计算:(1)(-13)-1+(+8)0-22012×(-12)2011(2)5a2b-(-2ab3)+3ab-(4a2b3)-数学
计算:(1)(-13)-1+(+8)0-22012×(-12)2011(2)5a2b-(-2ab3)+3ab-(4a2b3)-数学
题目简介
计算:(1)(-13)-1+(+8)0-22012×(-12)2011(2)5a2b-(-2ab3)+3ab-(4a2b3)-数学
题目详情
计算:
(1)
(-
1
3
)
-1
+(+8
)
0
-
2
2012
×(-
1
2
)
2011
(2)5a
2
b-(-2ab
3
)+3ab-(4a
2
b
3
)
题型:解答题
难度:中档
来源:不详
答案
(1)原式=-3+1-[2×(-
class="stub"1
2
)]2011×2
=-3+1+2
=0;
(2)原式=-10a3b4+12a3b4
=2a3b4.
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题目简介
计算:(1)(-13)-1+(+8)0-22012×(-12)2011(2)5a2b-(-2ab3)+3ab-(4a2b3)-数学
题目详情
(1)(-
(2)5a2b-(-2ab3)+3ab-(4a2b3)
答案
=-3+1+2
=0;
(2)原式=-10a3b4+12a3b4
=2a3b4.