Board Thread:General Discussion/@comment-28301505-20170419081331/@comment-32487879-20170426233124

DesertStorm11 wrote: Pi is infinite so...

Anyone know the trick to multiplying by 11? I actually do. 11 = 10 + 1, so you just shift the digits over and add that to the original.

123 * 11 = 1230 + 123 which is just 1353