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The Fundamental Operations in BEAD ARITHMETIC
How to Use the Chinese Abacus
by K.W.L.
Measures 5 1/4" x 7 1/4", 51 pages. Contents: General Directions, Addition, Subtraction, Multiplication, Division, Short Cuts and Review Exercises, Square Root and Cube Root. Soft cover wraps, tight stapled binding, some minor sun fading, not a big deal. Overall very good condition.
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