问题
解答题
(1)|-3|+|-10|-|-1| (2)(+5)-(-3)+(-8); (3)(+
(4)-3-4+19-11. |
答案
(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.
(1)|-3|+|-10|-|-1| (2)(+5)-(-3)+(-8); (3)(+
(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.