问题 解答题
计算下列各题:
(1)(
1
2
-
1
8
)×(-16)

(2)5-(-5)3÷(-5)2
(3)(
1
15
-
5
6
-
7
12
)×(-60)

(4)-16-(1-
1
2
)÷3×[2-(-3)2]
答案

(1)原式=

1
2
×(-16)+
1
8
×16

=-8+2

=-6;

(2)原式=5-(-125)÷25

=5+5

=10;

(3)原式=

1
15
×(-60)-
5
6
×(-60)-
7
12
×(-60)

=-4+50+35

=81;

(4)原式=-1-

1
2
×
1
3
×(2-9)

=-1+

1
6
×7

=

1
6

单项选择题 A1/A2型题
单项选择题