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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: 7,535

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: 86,776

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.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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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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