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#1 2010-01-02 21:11:59

kittykat01
Member
Registered: 2010-01-02
Posts: 3

Convert percentage to decimal

The examples show that the decimal point moves - it doesn't, the decimal point never moves - the digits move.  I am already trying to undo some bad maths teaching and getting kids to understand place value.  I have really enjoyed looking through this web site and will use some of it in class (not this page though):)

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#2 2010-01-03 14:22:19

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,529

Re: Convert percentage to decimal

Hi, and thanks for the comment.

kittykat01 wrote:

The examples show that the decimal point moves - it doesn't, the decimal point never moves - the digits move.

This must be a point of ignorance for me ... does it matter which one moves, and why?


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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#3 2010-01-04 00:35:37

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 81,401

Re: Convert percentage to decimal

This must be a point of ignorance for me ... does it matter which one moves, and why?

I don't think it matters, how you view it. Saying that the decimal point moves 2 places to the right (or to the left ) is how I was taught.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#4 2010-02-21 04:56:41

iamfriendly
Member
Registered: 2009-07-03
Posts: 72

Re: Convert percentage to decimal

Well, in my opinion, moving the decimal point is easier than moving all the digits


EYE AM FRIENDLY, THAT'S O U NEED 2 NO,
psst,
Don't trust strangers, EYE AM FRIENDLY, THAT'S O U NEED 2 NO ..........psst, Don't trust strangers......

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#5 2010-02-21 05:56:17

LQ
Real Member
Registered: 2006-12-04
Posts: 1,281

Re: Convert percentage to decimal

To convert % to , you divide by 100 and hence you make your answer one hundred times smaller.


I see clearly now, the universe have the black dots, Thus I am on my way of inventing this remedy...

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