问题
解答题
计算 (1)-7+11-9 (2)(
(3)(-18)÷2
(4)
(5)32÷(-2)4-(-
(6)(-
|
答案
(1)原式=-16+11
=-5;
(2)原式=
×(-60)+3 4
×(-60)-7 12
×(-60)7 6
=-45-35+70
=-10;
(3)原式=18×
×4 9
×4 9 1 16
=
;2 9
(4)原式=-2+
-28 9
=-
;28 9
(5)原式=32÷16-(-
)×(-4)1 8
=2-1 2
=
;3 2
(6)原式=5+(-
+2 3
)+81 3
=13-1 3
=
.38 3