I recall playing a game called "Math Circus" during my elementary school years on the 550s all the way to the eMacs. There were 4 editions released during my time there. My youngest sister (who is in grade 6) informed me they are now using edition 7.

I don't recall a computer virus eating computer chips in Math Circus, but I do have a couple of other old math games on disk for my SE (these are the originals in their original packaging), so I'll check them out, and get back to you.