Unlike the picture, there are no decimals. The rightmost column is the unit column.
Hi, the abacus is Chinese invention, not japanese !!!
i never made any claim to who invented the abacus. i'm just clarifying that this problem pertains to the japanese soroban, which is specifically designed for base-10 arithmetic.
Link provided to webhome.idirect.com appears to be down. Here is another link:
i dont get it..how does it work?
Twins in a Window
intersection of matrices
Count up then down
Will there be a new leader?
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Next Lower Power of B
Return the 'Size' of a String of Code
Roll the Dice!
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