Simple Saturday Prep: The Metric Worm vs. The Phantom Number

(Cue  scary harpsicord music.) We are about to enter a realm few people have faced with confidence.

Just look at this poor fellow. See what converting fractions to decimals did to him? Too bad he didn't know about the Metric Worm. Tragic, isn't it?

For tomorrow's ghoulish pleasure you will need 2 index cards, a Sharpie, some tape, a pencil, and paper.

All for now. (Cue evil laughter.) Bwwaaa ha ha!