12-28-2021, 10:40 AM
Just for fun, I was thinking of buying an abacus. Dhould I get a 4:1 abacus or 5:2 abacus? Any abacus geeks here able to weigh in?
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Best abacus to buy
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Best abacus to buy - by sachiek - 12-28-2021, 10:40 AM
RE: Best abacus to buy - by ttchrist69 - 12-28-2021, 11:21 AM
RE: Best abacus to buy - by Kevin - 12-28-2021, 11:23 AM
RE: Best abacus to buy - by curved_time - 12-28-2021, 11:25 AM
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