Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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You are not logged in. #1 2010-01-03 20:11:59
Convert percentage to decimalThe 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) #2 2010-01-04 13:22:19
Re: Convert percentage to decimalHi, and thanks for the comment.
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 #3 2010-01-04 23:35:37
Re: Convert percentage to decimal
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. 90% of mathematicians do not understand 90% of currently published mathematics. I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on. #4 2010-02-22 03:56:41
Re: Convert percentage to decimalWell, 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...... #5 2010-02-22 04:56:17
Re: Convert percentage to decimalTo 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... |