问题 解答题
计算:
(1)(-0.5)+(-1
5
6
)

(2)|-4
1
4
-(-
3
4
)|-(|-4
1
4
|-|-
3
4
|)
答案

(1)原式=-

1
2
+(-1
5
6

=-(

1
2
+1
5
6

=-2

1
3

(2)原式=|-4

1
4
+
3
4
|-(4
1
4
-
3
4

=4

1
4
-
3
4
-4
1
4
+
3
4

=(4

1
4
-4
1
4
)+(-
3
4
+
3
4

=0.

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