问题 解答题
计算
(1)(-
1
6
)+(-
2
7
)+(-
5
6
)+(+
5
7
)

(2)(
1
2
+
5
6
-
7
12
)×(-36)

(3)-24+5×(-3)-6÷(-
1
6
)

(4)(1-
2
3
)÷(-
1
6
)+(-2)2×(-3)

(5)-16-[-2-(-3)3]-|
1
8
-(0.5)2|

(6)0.7×1
4
9
+2
3
4
×(-15)+0.7×
5
9
+
1
4
×(-15)
答案

(1)原式=-1+

3
7
=-
4
7

(2)原式=-18-30+21=-27;

(3)原式=-16-15+36=5;

(4)原式=

1
3
×(-6)+4×(-3)=-2-12=-14;

(5)原式=-1-(-2+27)-|

1
8
-
1
4
|=-1-25-
1
8
=-26
1
8

(6)原式=0.7×(1

4
9
+
5
9
)+(2
3
4
+
1
4
)×(-15)=0.7×2+3×(-15)=1.4-45=-43.6.

单项选择题
单项选择题