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by mthtrw
979 days ago
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You use a counting board rather than paper: https://www.youtube.com/watch?v=UVB27kKAcRs&t=111 The main advantage of Arabic numerals on paper have is that operations are non destructive and you can restarts a calculation if you lose your place. The main disadvantage is memorising the times table and the amount of scratch paper you need. |
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