题目内容

计算
(1)(-0.9)+(+4.4)+(-8.1)+(+5.6)
(2)|-
7
9
|÷(
2
3
-
1
5
)-
1
3
×(-4)2
(3)-22-(-3)3×(-1)4-(-1)5
(4)(-36)×(
1
4
-
5
6
+
7
9
-
1
18

(5)1
7
8
÷(-10)×(-3
1
3
)÷(-3
1
4

(6)-0.85×
8
17
+14×
2
7
-(14×
3
7
-
9
17
×0.85)
(1)原式=(-0.9-8.1)+(4.4+5.6)=-9+10=1;
(2)原式=
7
9
÷
7
15
-
1
3
×16=
5
3
-
16
3
=-
11
3

(3)原式=-4+27+1=24;
(4)原式=-9+30-28+2=-5;
(5)原式=
15
8
×(-
1
10
)×(-
10
3
)×(-
4
13
)=-
5
26

(6)原式=0.85×(
9
17
-
8
17
)+14×(
2
7
-
3
7
)=
17
50
×
1
17
-2=-1
49
50
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