1.一支原子筆重8.5g.120枝原子筆共重___________kg.
2.鞋原價420元.现在特價357元.這對鞋＿＿＿＿＿＿折發售.
點做下面两题數學題
2007-02-10 4:40 pm
回答 (2)
2007-02-10 4:47 pm
✔ 最佳答案
1.8.5g X 120 = 1020g
1000g = 1kg
1020g = 1.02kg
2. 375/420 X 100%= 85%
八五折
2007-02-10 4:48 pm
1) (8.5 x 120 / 1000)kg = 1.02 kg
2) (357 / 420 X 100%) = 0.85 = 85 折
2) (357 / 420 X 100%) = 0.85 = 85 折
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https://hk.answers.yahoo.com/question/index?qid=20070210000051KK00651