Directed Number
回答 (1)
2013-07-23 3:10 am
✔ 最佳答案
1) [(-4)(-6) - (-5)(+8)] ÷ [(-5)(+2) - (-2)]
[4 x 6 + 5 x 8] ÷ [- 5 x 2 + 2]
= [24 + 40] ÷ [-10 + 2]
= 64 ÷ (-8)
= -64 ÷ 8
= -8
參考: 不用客氣
收錄日期: 2021-04-13 19:34:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130722000051KK00248