Understand meanings - PowerPoint PPT Presentation

Why 10?

Why 10?. Why 10? O ur number system is based and built by 10’s. It originated because we have 10 fingers—how the first person began counting. Presented by Joan Kernan and Donna Kouri. Research for Number Sense. National Council for Mathematics Elementary and Middle School Mathematics:

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266 views • 14 slides

Why 10?

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280 views • 14 slides

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