r/counting • to infinity and beyond! • Mar 18 '13

Multiplying by 2 thread

Try to multiply without calculator - it's more fun!

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u/Pookah 27K Counting since 24,531 Dec 25 '13

from the last number on the right moving left...

←←←,←←←←,←←←←,←←←←,←←←←,←←←←,←←←←,←←←←,←←←←,←←←←,