The Day the Numbers DisappearedA teacher and his class have fun discovering the importance of numbers, their history, the principles of various counting and numbering systems, and the basic concept of "place value" in arithmetic. |
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abacus added addition agreed alphabet answer arith arithmetic Arnold beginning Bendick Book boys called Cathy counting course crazy Danny David decided desk Dibbs asked Dibbs grinned Dibbs looked DISAPPEARED divide Division easier easy EGYPTIAN NUMBER MARKS Egyptians face facts fight figure fingers five four give Greeks groaned guess Hallie hands hard head HELP Henry House hundred idea invented Jeanne keep Larry Laurie learned Let's letters Lisa looked means metic milk minute multiply never number marks Peggy penalty piles place value Reading remember repeat Romans rule sacks shouted sighed smart stand started Steve stood strokes subtract superpile symbols tell tens things thought thousand told turn twenty wait wanted What's write writing numbers written wrote zero