OTmath·11 jaar geleden·discussMostly North American.If you're interested, these videos explain and discuss each "trick" in more detail:https://www.youtube.com/watch?v=1gxLwLBl4mM&index=4&list=PLA...It's a work in progress...
If you're interested, these videos explain and discuss each "trick" in more detail:
https://www.youtube.com/watch?v=1gxLwLBl4mM&index=4&list=PLA...
It's a work in progress...