Monday, July 26, 2010

Math Trick?

I love math. I love math tricks, especially ones that are a lot more complicated than they should be.
Here's one I found the other day.
Take any two numbers from 1-9.
Multiply the first number by 5.
Add 7.
Double the number.
Add second number.
Subtract 14.
And wa la. You have a number with your two numbers as its digits.
In algebra this expression would look like this:
Let's simplify.
So, it's not magic after all.

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Hi! Now that you've read my post, hast thou any opinions that thou wouldst like to share? I'd love to hear them!

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