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place value? [Copy link] 中文

Rank: 8Rank: 8

Post time 2009-2-7 09:15:13 |Display all floors
Question: how do you determine place value?

请教place value是什么意思?
Grand Avenue_20090203_place value.gif
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Post time 2009-2-7 09:20:07 |Display all floors
比如说,2在10位数上是20。

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Post time 2009-2-7 15:16:46 |Display all floors
不好理解,but still many thanks Lateblue!
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Post time 2009-2-7 16:20:54 |Display all floors

location, location, location

Originally posted by adeley at 2009-2-7 15:16
不好理解,but still many thanks Lateblue!


the question is usually meant to be a math question.

place value ---> unit, tens, hundreds, thousands etc.

but the kid answered as if she is buying property.. she interpreted the value of place as value of property. .. as in Real estate, it is locations, location, location.  ( the best locations cost the msot.)

Adeley: confuse?

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Post time 2009-2-7 17:33:07 |Display all floors
place value: 位值,位置值

For more information, please visit:

http://www.chinabaike.com/articl ... 20071005554195.html

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Rank: 8Rank: 8

Post time 2009-2-12 10:28:08 |Display all floors
这是从Edward推荐的网站上copy过来的:

位值制,又叫位值原则。

记数时,同一个数字由于所在位置的不同,表示的数值也不同。既是说,一个数字除了本身的值以外,还有一个“位置值”。

例如,用符号555表示五百五十五时,这三个数字具有相同的数值五,但由于位置不同,因此具有不同的位置值。最右边的五表示五个一,最左边的五表示五个百,中间的五表示五个十,所以555的意思是5*100+5*10+5*1。

常用的位值制记数法出了十进制外,还有二进制、八进制、十六位进制等。

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