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The Abacus theory is the ability perform math using finger combinations. Original equipment calculator. 🧮

The Abacus theory is the ability perform math using finger combinations. Original equipment calculator. 🧮

Roger

Roger on September 20, 2023 172 views

///@maythesciencebewithyou: The Abacus theory is the ability perform math using finger combinations.

#math #calculator #human #science #smart

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Pat Eby

Wow!!!

September 21, 2023