(1)-123×(0.5-23)÷119(2)(-56+34-718)×(-36)(3)-48÷82-(-25)÷(-6)2(4)-3-[-5+(1-0.2×3...

2023-07-05 19:24发布

这道初中数学的题目是:
(1)-1
2
3
×(0.5-
2
3
)÷1
1
9

(2)(-
5
6
+
3
4
-
7
18
)×(-36)

(3)-48÷82-(-25)÷(-6)2
(4)-3-[-5+(1-0.2×
3
5
)÷(-2)]
1条回答
笑傲网络
2023-07-05 19:45
这道初中数学题的正确答案为:
(1)原式=-
5
3
×(
3
6
-
4
6
)÷
10
9
=-
5
3
×(-
1
6
)×
9
10
=
1
4

(2)原式=(-36)×(-
5
6
)+(-36)×
3
4
-(-36)×
7
18
=30-27+14=17;
(3)原式=-48÷64-(-25)÷36=-
3
4
+
25
36
=-
1
18

(4)原式=-3-[-5+(1-
3
25
)×(-
1
2
)]=-3-(-5-
22
25
×
1
2
)=-3-(-
75
25
-
11
25
)=-3+
86
25
=
11
25
解题思路 53

一周热门 更多>