问题 解答题
计算
(1)(-4)-(+13)+(-5)-(-9)
(2)(-48)÷8-(-25)×(-6)
(3)-14-(1-0.5)×
1
3
×[2-(3)2]
(4)(
2
3
-
1
12
-
1
15
)×(-60)
答案

(1)原式=-4-13-5+9

=-13;

(2)原式=-6-150

=-156;

(3)原式=-1-

1
2
×
1
3
×(-7)

=-1+

7
6

=

1
6

(4)原式=-40+5+4

=-31.

多项选择题
填空题