Hi, my name is Bassem Saad. I'm an associate math instructor and a Ph.D. candidate and I'm here today for About.com to answer the question: what are addends?So any term in an addition is called an addend. For example, three plus two equals five: only three and two are addends; five is the resulting sum. Three plus two equals five; three and two are addends.From an algebraic perspective, if we take three variables - a, b, and c - and we add each one of them together, each variable – a, b, and c are addends. If we take three variables - a, b, and c – each variable – a, b, and c are addends.So in this example, we can find the missing addend. That's three plus something equals five. So we take five, we take out three, and we find the missing addend: two. So now we know what addends are.Thanks for watching, and to learn more visit us on the web at About.com.