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:
2(5x+7)+y-14
Let's simplify.
10x+14+y-14
10x+y.
So, it's not magic after all.
The blog of a girl who's looking for God's plan for her life. In the mean-time, she's knitting books and writing scarves ... or something like that.
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