计算:(1)-2-3-5(2)(-2)÷13×(-3)(3)(23-112-415)×(-60)(4)-14+8-23÷(-4)×(-7+5)(5)100-(-...

2023-07-08 13:50发布

这道初中数学的题目是:
计算:
(1)-2-3-5
(2)(-2)÷
1
3
×(-3)

(3)(
2
3
-
1
12
-
4
15
)×(-60)

(4)-14+8-23÷(-4)×(-7+5)
(5)100-(-3)÷(
3
4

(6)-11-2×(-33)+(-22)
(7)-32÷[-32-(-2)3].
1条回答
荷叶小露
1楼-- · 2023-07-08 13:53
这道初中数学题的正确答案为:
(1)-2-3-5
=-(2+3+5)
=-10;

(2)(-2)÷
1
3
×(-3)

=-6×(-3)
=18;

(3)(
2
3
-
1
12
-
4
15
)×(-60)

=-
2
3
×60+
1
12
×60+
4
15
×60
=-40+5+16
=-19;

(4)-14+8-23÷(-4)×(-7+5)
=-1+8-8÷(-4)×(-2)
=-1+8-4
=3;

(5)100-(-3)÷(
3
4

=100+4
=104;

(6)-11-2×(-33)+(-22)
=-11-66-22
=-99;

(7)-32÷[-32-(-2)3]
=-32÷[-9+8]
=-32÷[-1]
=32.
解题思路 13

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