Back to photostream

Online Abacus Classes | Mastermindabacus.com

Get the best service for online abacus classes from Mastermindabacus.com. The abacus is divided into two unequal portions by a horizontal crossbar perpendicular to the rods. Heaven beads are those that are above the crossbar, and earth beads are those that are below the crossbar. For more data, visit our site.

 

Online Abacus Classes

6 views
0 faves
0 comments
Uploaded on February 19, 2022