问题
解答题
计算题: (1)|-3+1|-(+2); (2)-
(3)(-
(4)-14-(-5
|
答案
(1)|-3+1|-(+2)
=2-2
=0;
(2)-
+(-1 3
)-(-1 6
)-0.51 4
=(-
-1 3
)+(1 6
-1 4
)1 2
=-
-1 2 1 4
=-
;3 4
(3)(-
)÷(-5 6
)×5 4
-(-3 2
)21 2
=(-
)×(-5 6
)×4 5
-3 2 1 4
=1-1 4
=
;3 4
(4)-14-(-5
)×1 2
+(-2)34 11
=-1+
×11 2
-84 11
=-1+2-8
=-9+2
=-7.