例題：
1.60×85%=___
=51
2.1/9×100%=___% (紅字=分子,藍字=分母)
=77 7/9 或 77又9分之1%
如果答案不是整數，請用分數作答。(好似例題2咁答)
506/2200×100%=____%
319/2200×100%=____%
2200×75%=____
132×175%=____
〈小六數學-百分率〉快快快!!!一小時內!!!15點×2~
2008-01-21 3:55 am
回答 (6)
2008-01-21 4:04 am
✔ 最佳答案
1.506/2200×100%=23/100X100%
=23%
2.319/2200×100%
=29/200X100%
=14/1/2% (14.5%)
3.2200×75%
=2200X 75/100(75%)
=1650
4.132×175%
=132X 175/100(175%)
=231
2008-01-20 20:06:14 補充：
仲有 你例題2.個到錯左 9分之1x100% 係=11/1/9(11又9分之1)
2008-01-20 20:09:30 補充：
p.s.補充個到差左個%-3- =11/1/9%(11又9分之1%)
2008-01-22 2:45 am
ans:
1.23%
2.14 1/2%
3.1650
4.231
1.23%
2.14 1/2%
3.1650
4.231
2008-01-22 1:46 am
1.23%
2.14 1/2%
3.1650
4.231
2.14 1/2%
3.1650
4.231
2008-01-22 12:45 am
506/2200×100%=23%
319/2200×100%=14.5%
2200×75%=1650
132×175%=231
-------------------------------------
答案簡單又易明*_*
319/2200×100%=14.5%
2200×75%=1650
132×175%=231
-------------------------------------
答案簡單又易明*_*
2008-01-21 4:19 am
2: 319/2200x100%
=14.5/100x100%(將分母除22,令分母變返100,注意:分子都要除返22)
=14.5%
3:2200x75%
=2200x3/4
=1650
4:132x175%
=132x1.75
=231
=14.5/100x100%(將分母除22,令分母變返100,注意:分子都要除返22)
=14.5%
3:2200x75%
=2200x3/4
=1650
4:132x175%
=132x1.75
=231
參考: 咁係我呢個當今既數學天才啦
收錄日期: 2021-04-13 14:59:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080120000051KK03627