问题
解答题
计算: (1)8-(-2)2×(-3)-(-5)2 (2)-24-(-4)2×(-1)+(-3)2 (3)(-2)×(81×
(4)(-10+
|
答案
(1)原式=8-4×(-3)-25
=8+12-25
=-5;
(2)原式=-16-16×(-1)+9
=-16+16+9
=9;
(3)原式=(-2)×81×
×(-1 2
)2 9
=18;
(4)原式=10×(-10)+10×
-10×1 10 1 2
=-100+1-5
=-104.