This week's LabZone activity
Jan. 19, 2005
This is the Maya math system. The shell is used as a symbol for zero, a dot for one, and a bar for five. The Maya counted by twenties, as we count by tens. The number twenty is written as a dot with a shell (meaning zero) under it.
Twenty-one is a dot on top for twenty and a dot below for one.
Twenty times twenty is four hundredwrite it with a dot above and two shells beneath.
Can you figure out the Maya numbers not labeled?
Reprinted with permission from Mexico and Central America: A Fiesta of Cultures, Crafts, and Activities for Ages 812 by Mary C. Turck. Published by Chicago Review Press, Incorporated, distributed by Independent Publishers Group (www.ipgbook.com). Copyright © 2004 by Mary C. Turck.
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