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→The Caacupé abacus
Load the Caacupé abacus
Load the Caacupé abacus
It can represent negative whole numbers and fractions. 1/2 can be represented as 1 - 1/2 or 10 - 9 - 1/2
It can represent negative whole numbers and fractions. 1/2 can be represented as 10 - 9 - 2/3 + 1/6
[[File:Abacus10931.jpg]]
How many different ways can you represent 1/2 , 1/3, 2/3
How many different ways can you represent 1/2 , 1/3, 2/3