功課問題.急即日

👨🏻‍🏫 學術台數學

[匿名]

2007-09-25 1:05 am

中一功課請列式和列出答案THX~不要說廢說,多謝!!
A:(+7)(-8)(+5)

B:(-2)(-4)(-6)

--------(-5)(+2)
C: －－－－
----------(-10)

D:(-24)÷(-3)÷(-2)

---------------1---------1
E:(-6)×(負－)÷(負－)
---------------2--------3

--------1
F:(負－)÷(+2)×(-4)
------- 2

更新1:

同列過程

回答 (2)

Cherry

2007-09-25 1:14 am

✔ 最佳答案

A:(+7)(-8)(+5)
= -280

B:(-2)(-4)(-6)
= -48

C. (-5)(+2)(-10)
=+100

D:(-24)÷(-3)÷(-2)
= -4

E:(-6)×(-1)÷(-1)
=+6÷(-1)
= -6

F:(-1)÷(+2)×(-4)
= -0.5x(-4)
= +2

參考: 我

👍 0 👎 0

用戶49893

2007-09-25 4:42 am

A:(+7)(-8)(+5)
=(-56)(+5)
= -280

B:(-2)(-4)(-6)
=(+8)(-6)
= -48

C. (-5)(+2)(-10)
=(-10)(-10)
=+100

D:(-24)÷(-3)÷(-2)
=(+8)÷(-2)
= -4

E:(-6)×(-1)÷(-1)
=(+6)÷(-1)
= -6

F:(-1)÷(+2)×(-4)
= (-0.5)x(-4)
= +2

參考: Me

👍 0 👎 0

收錄日期: 2021-04-23 22:30:38
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