计算题(1)-35÷(-7)×(-17)(2)(23-1112-1415)×(-60)(3)3-2×(-5)2(4)-14-(1-0.5)×13×[2-(-3)...

2023-07-10 11:04发布

这道初中数学的题目是:
计算题
(1)-35÷(-7)×(-
1
7
)

(2)(
2
3
-
11
12
-
14
15
)×(-60)

(3)3-2×(-5)2
(4)-14-(1-0.5)×
1
3
×[2-(-3)2]
1条回答
樱花男孩
1楼-- · 2023-07-10 11:23
这道初中数学题的正确答案为:
(1)-35÷(-7)×(-
1
7
)

=5×(-
1
7

=-
5
7


(2)(
2
3
-
11
12
-
14
15
)×(-60)

=-
2
3
×60+
11
12
×60+
14
15
×60
=-40+55+56
=71;

(3)3-2×(-5)2
=3-2×25
=3-50
=-47;

(4)-14-(1-0.5)×
1
3
×[2-(-3)2]

=-1-
1
2
×
1
3
×[2-9]
=-1-
1
6
×[-7]
=-1+
7
6

=
1
6
解题思路 17

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