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 |
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 |
1 |
3 |
=-1+1
=0.