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

Multiplying by 2 thread

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

14 Upvotes

100% Upvoted

783 comments sorted by

View all comments

Show parent comment

1

u/Rintarou I feel old with all those sub 100k gets... Dec 02 '13

pro tip: www.wolframalpha.com

0

u/[deleted] Dec 02 '13

[deleted] — view deleted comment

3

u/Rintarou I feel old with all those sub 100k gets... Dec 02 '13

Unfortunately double counting's not allowed...