问题
解答题
计算: (1)-32-(-2)2; (2)(-10)2+[(-4)2-(3+32)×2]; (3)(-1)4+(-23)÷
(4)(-2)2010+(-2)2011; (5)(-0.25)2010×42011. |
答案
(1)-32-(-2)2,
=-9-4,
=-13;
(2)(-10)2+[(-4)2-(3+32)×2],
=100+[16-(3+9)×2],
=100+(16-24),
=100-8,
=92;
(3)(-1)4+(-23)÷
×(-4 9
)3,2 3
=1-8×
×(-9 4
),8 27
=1+
,16 3
=
;19 3
(4)(-2)2010+(-2)2011,
=(-2)2010+(-2)×(-2)2010,
=(1-2)×(-2)2010,
=-22010;
(5)(-0.25)2010×42011,
=(-0.25)2010×4×42010,
=(-0.25×4)2010×4,
=1×4,
=4.