Griff Lewis

Repaso de Orion abacus association

👍 Orion abacus association is the best! I'm so gla...

👍 Orion abacus association is the best! I'm so glad I found their website, orionabacus.org. The abacus training courses they offer are fantastic and have helped me improve my mental math skills. The instructors are really supportive and create a positive learning environment. I can't recommend them enough! 👍