问题
解答题
计算: (1)23-17-(-7)+(-16); (2)-5+6÷(-2)×
(3)-36×(
(4)-23+|5-8|+24÷(-3). |
答案
(1)23-17-(-7)+(-16)
=23-17+7-16
=-3;
(2)-5+6÷(-2)×1 3
=-5+6×(-
)×1 2 1 3
=-5-1
=-6;
(3)-36×(
-1 4
-1 9
)1 12
=-36×
-1 4
×(-36)-1 9
×(-36)1 12
=-9+4+3
=-2;
(4)-23+|5-8|+24÷(-3)
=-8+3+(-8)
=-13.