A-A+
计算:(1)-14-16×[2-(-3)2];(2)(-1)4-(1-0.5)×13×[2-
问题详情
计算:
(1)-14-
(2)(-1)4-(1-0.5)×
(3)(-2)2-22-|-
(4)(-2
参考答案
(1)-14-16×[2-(-3)2],
=-1-16×(2-9),
=-1+76,
=16;
(2)(-1)4-(1-0.5)×13×[2-(-2)2],
=1-12×13×(2-4),
=1+13,
=43;
(3)(-2)2-22-|-14|×(-1)2,
=4-4-14×1,
=-14;
(4)(-212)×(-0.5)3×(-2)2×(-8),
=-52×(-18)×4×(-8),
=-52×18×4×8,
=-10.
考点: