Abacus Math Program – Lesson 2 – Counting 6 to 9
Now that we know how to enter and remove the numbers from 1 to 5 on the abacus, we will continue with the remaining numbers 6 to 9. From this point we will be able to represent all 10 digits, 0 through 9, on a single rod of the abacus or soroban. As a reminder, in
Abacus Basic Use and Introduction to Counting
This video is an introduction to soroban construction and some of its basic use. Here we have a 17 rod soroban. I can represent a base-10 number up to 17 digits. The soroban is constructed with 17 vertical rods each rod containing 5 beads. The beads are separated by a counting bar call the reckoning