My kids are still convinced that I've got 11 fingers!
Hold both hands out, fingers up, and count backwards.
10..9..8..7..6 on one hand. Plus the 5 on the other. 6+5 = 11!
It has them thinking for hours. And then they try to do it on their fingers and only get 10!
They've told all their friends in school that their Dad has got 11 fingers.......but they're not sure they can prove it!
