Question

10+10=100

Answer 1

binary arithmetic

Answer 2

\[10_2 \implies 2 \\ 2 + 2 = 4 \implies 100_2\]

Answer 3

ah,
too easy,

Answer 4

Yep :)

Answer 5

This is a fantastic video of a binary adding machine made of wood which uses marbles.

http://www.youtube.com/watch?v=md0TlSjIags

Answer 6

That looks very admirable, @mathteacher1729

Answer 7

Sorry wrong link, that's the mechanics of the actual machine.

Here it is in action, actually adding marbles using binary:
http://www.youtube.com/watch?v=GcDshWmhF4A

Answer 8

*