I printed the post off for my daffter. She laughed and said she didn't know how it works but it does. She's busy with the calculator seeing if there's a rule that applies to other equations. Have you seen kids work out their "9"s on their fingers? It's funny. Julie Krueger ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html