addend.
http://wiki.answers.com/Q/What_is_a_number_being_a...

To find out what percent one number is of another, divide the one number by the one you call another. Then move the decimal to the right two spaces. Two divided by four is .5, so
http://answers.ask.com/Science/Other/what_percent_...

1. Count the letters and numbers in each line of ad copy. For example, if the line read: Big Weekend Sale @ Jones July, 4! The letter and number count would be: 3+7+4+5+4+1 = 24.
http://www.ehow.com/how_8400674_calculatenumberc...

so if X and Y are perfect squares, then say x^2=X and y^2=Y. We want X, Y such that X = N + Y for a given N. Rearranging the sides, we get N = X  Y = x^2y^2 = (x + y)*(x  y),
http://www.quora.com/Mathematics/Whatistheminim...
