问题
解答题
计算: (1)|-5-4|-(+5)×(-2)2-1×(-3) (2)-1100-(1-0.5)×
|
答案
(1)|-5-4|-(+5)×(-2)2-1×(-3),
=9-20-(-3),
=-8;
(2)-1100-(1-0.5)×
×[3-(-3)2],1 3
=-1-
×1 2
×(-6),1 3
=1-(-1),
=2.
计算: (1)|-5-4|-(+5)×(-2)2-1×(-3) (2)-1100-(1-0.5)×
|
(1)|-5-4|-(+5)×(-2)2-1×(-3),
=9-20-(-3),
=-8;
(2)-1100-(1-0.5)×
×[3-(-3)2],1 3
=-1-
×1 2
×(-6),1 3
=1-(-1),
=2.