问题 解答题
计算:
(1)8+(-10)+(-2)-(-5)
(2)2
1
7
-3
2
3
-5
1
3
+(-3
1
7

(3)8×(-
4
5
)÷|-16|
(4)18×(-
2
3
)+13×
2
3
-4×
2
3

(5)[30-(
7
9
+
5
6
-
11
12
)×(-36)]÷(-5)
(6)39
23
24
×(-12)
答案

(1)原式=8-10-2+5=1;

(2)原式=2

1
7
-3
1
7
-3
2
3
-5
1
3
=-1-9=-10;

(3)原式=-8×

4
5
×
1
16
=-
2
5

(4)原式=-12+(13-4)×

2
3
=-12+6=-6;

(5)原式=[30-(-28-30+33)]÷(-5)=(30+25)÷(-5)=-11;

(6)原式=(40-

1
24
)×(-12)=-480+
1
2
=-479
1
2

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