Comments on: Mental Math Shortcuts http://betterexplained.com/articles/mental-math-shortcuts/ Learning shouldn't hurt. Let's share the insights that made difficult ideas click. Sun, 6 Jul 2008 23:48:31 +0000 http://wordpress.org/?v=2.0 by: Debrish http://betterexplained.com/articles/mental-math-shortcuts/#comment-143972 Mon, 31 Mar 2008 22:56:05 +0000 http://betterexplained.com/articles/mental-math-shortcuts/#comment-143972 How do you find multiples of 1-12 easily like if u add the digits of the number and it is a multiple of 3 the number is a multiple of 3? How do you find multiples of 1-12 easily like if u add the digits of the number and it is a multiple of 3 the number is a multiple of 3?

]]> by: Kalid http://betterexplained.com/articles/mental-math-shortcuts/#comment-143080 Wed, 26 Mar 2008 15:16:46 +0000 http://betterexplained.com/articles/mental-math-shortcuts/#comment-143080 @Michael: Cool, thanks for the tip, it's a nice rule of thumb. It'd be neat if there was a way to account for different terms/interest rates too. @Raj: There's shortcuts above for powers of 2, but otherwise I think you'd need to just multiply it out. @Michael: Cool, thanks for the tip, it’s a nice rule of thumb. It’d be neat if there was a way to account for different terms/interest rates too.

@Raj: There’s shortcuts above for powers of 2, but otherwise I think you’d need to just multiply it out.

]]> by: Raj http://betterexplained.com/articles/mental-math-shortcuts/#comment-143059 Wed, 26 Mar 2008 10:59:33 +0000 http://betterexplained.com/articles/mental-math-shortcuts/#comment-143059 How to calculate x^y manually, is there any short cuts? How to calculate x^y manually, is there any short cuts?

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