A-A+
计算:(1)-32-(-2)2; (2)-14-16×[2-(-3)2];(3)(-10)2
问题详情
计算:
(1)-32-(-2)2; (2)-14-
(3)(-10)2+[(-4)2-(3+32)×2];(4)(-1)4-(1-0.5)×
(5)-0.52+
(7)(-2)2003+(-2)2002;(8)(-0.25)2009×42008.
参考答案
(1)-32-(-2)2-9-4
=-13;
(2)-14-16×[2-(-3)2]
=-1-16×(-7)
=-1+76
=16;
(3)(-10)2+[(-4)2-(3+32)×2]
=100+(16-24)
=92;
(4)(-1)4-(1-0.5)×13×[2-(-2)2]
=1-16×(-2)
=113;
(5)-0.52+14-|-22-4|-(-112)3×49
=-0.25+14-8+278×49
=-6.5;
(6)(-2)3-3×[(-4)2+2]-(-3)2÷(-2)
=(-8)-3×18+92
=(-8)-54+92
=-62+92
=-1152;
(7)(-2)2003+(-2)2002
=-22003+22002
=-22002×2+22002
=22002×(-2+1)
=-22002;
(8)(-0.25)2009×42008
=-(14)2009×42008
=-14×(14×4)2008
=-14.
考点: