题目内容
(1)
;
(2)
;
(3)
;
(4)
.
(2)
(3)
(4)
解:(1)原式=
-
+
-
=3-6
=-3;
(2)原式=-
×
-8×
=-2-4
=-6;
(3)原式=
×(-36)
=-1;
(4)原式=-9×
-[25×(-
)+60×
-2]
=﹣3-(-15+15﹣2)
=-3+2
=-1.
=3-6
=-3;
(2)原式=-
=-2-4
=-6;
(3)原式=
=-1;
(4)原式=-9×
=﹣3-(-15+15﹣2)
=-3+2
=-1.
练习册系列答案
相关题目