题目内容

(1)|-3|+|-10|-|-1|
(2)(+5)-(-3)+(-8);
(3)(+
1
6
)-(+
1
3
)-(-
1
12
).
(4)-3-4+19-11.
(1)原式=3+10-1
=12;

(2)原式=5+3-8
=9;

(3)原式=
1
6
-
1
3
+
1
12

=
2
12
-
4
12
+
1
12
=
-1
12

=-
1
12


(4)原式=-7+19-11
=12-11
=1.
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