The Abacus theory is the ability perform math using finger combinations. Original equipment calculator. 🧮
Roger
on September 20, 2023 157 views
#Repost
///@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
Pat Eby
Pat Eby replied - 2 replies