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Name:
Abacus Template
Description:
Abacus for mathematics.
Categories:
Keywords:
abacus, add, addition, ancient math, brown, calculate, calculator, computation, counting, counting machine, educate, education, educational, historic, history, learn, learn, math, mathematics, old math, subtraction, subtraction, teacher, teaching, teaching, tutoring, tutoring
Added:
2010-03-21 14:51:24
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