6 double digits 1 Sec Flash Anzan By Nisih on October 12, 2015 - Category : General Updates - Tags : abacus, Abacus practice, classroom, Megamind Here is Isabelle, 10, performing flash anzan at the speed of 1 second per flash. 0
5 Double digits 1 Sec Flash Anzan By Nisih on October 12, 2015 - Category : General Updates - Tags : abacus, Abacus practice, classroom, Megamind Here is Isabelle, 10, completing flash anzan of 5 double digits at 1 sec each. 0
