Welcome to the learning center for Free-Ed.Net's PreAlgebra programs. Pre-algebra programs are intended to give the learner a running start at algebra:  basic arithmetic, fractions and decimals, measuring systems, powers of 10, basic equations ... all that sort of thing. There is a wealth of material here, and we trust you will find a path that suits your learning style and academic needs. It can be especially helpful for those who have a dread of taking algebra.

• Basic Operations with Signed Integers