家長問數，是問折扣方面的運算
回答 (2)
2006-12-16 4:51 pm
✔ 最佳答案
0.2%÷1.2= 0.2/100 ÷ 1 2/10
= 2/1000 ÷ (10/10 + 2/10)
= 2/1000 ÷ (12/10)
= 2/1000 x 10/12
= 1/100 x 1/6
= 1/600
2006-12-16 17:10:15 補充：
問題修改,再答一次0.2% x 1.2= 0.2/100 x 1 2/10= 2/1000 x (10/10 + 2/10)= 2/1000 x 12/10= 24/10000= 0.24/100= 0.24%
2006-12-16 7:04 pm
= 0.2 x 1/100 x 1.2
= (0.2 x 1.2) x 1/100
= 0.24 x 1/100
= 0.24%
= (0.2 x 1.2) x 1/100
= 0.24 x 1/100
= 0.24%
收錄日期: 2021-04-12 22:56:42
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061216000051KK00566