问题
解答题
计算 (1)(-2)3÷8-2×(-3)-(-1)2012 (2)-
|
答案
(1)(-2)3÷8-2×(-3)-(-1)2012
=(-8)÷8-(-6)-1
=-1+6-1
=4;
(2)-
×(-2)2-(-1 4
)×421 2
=-
×4-(-1 4
)×161 2
=-1-(-8)
=-1+8
=7.
计算 (1)(-2)3÷8-2×(-3)-(-1)2012 (2)-
|
(1)(-2)3÷8-2×(-3)-(-1)2012
=(-8)÷8-(-6)-1
=-1+6-1
=4;
(2)-
×(-2)2-(-1 4
)×421 2
=-
×4-(-1 4
)×161 2
=-1-(-8)
=-1+8
=7.