问题 解答题
计算:
(1)23-17-(-7)+(-16);
(2)-5+6÷(-2)×
1
3

(3)-36×(
1
4
-
1
9
-
1
12
)

(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
-
1
9
×(-36)-
1
12
×(-36)

=-9+4+3

=-2;

(4)-23+|5-8|+24÷(-3)

=-8+3+(-8)

=-13.

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