问题
解答题
计算 (1)-5+8-11 (2)8-8÷(-2)-(-1)2010 (3)(-
(4)-22×(-
|
答案
(1)-5+8-11,
=-16+8,
=-8;
(2)8-8÷(-2)-(-1)2010,
=8-(-4)-1,
=8+4-1,
=12-1,
=11;
(3)(-
)÷|-15 6
|+2 3
×(-1.5),4
=(-
)×5 6
+2×(-1.5),3 5
=-
-3,1 2
=-3.5;
(4)-22×(-
)+8÷(-2)2,1 2
=-4×(-
)+8÷4,1 2
=2+2,
=4.