问题
解答题
计算: (1)(-5)×6×(-
(2)-1100-(1-0.5)×
|
答案
(1)原式=6×(5×
)×4 5 1 4
=6×(4×
)1 4
=6×1
=6;
(2)原式=-1-
×1 2
×(-6)1 3
=-1+1
=0.
计算: (1)(-5)×6×(-
(2)-1100-(1-0.5)×
|
(1)原式=6×(5×
)×4 5 1 4
=6×(4×
)1 4
=6×1
=6;
(2)原式=-1-
×1 2
×(-6)1 3
=-1+1
=0.