2nd abacus learning tutorial
Soroban Learning Tutorial - Level 2
Learn addition, subtraction, and little friends with the Soroban!
Page 1 of 5
Step 1: Introduction to Level 2
Welcome to Level 2! We'll learn:
- How to add and subtract on the Soroban
- What "little friends" are
- Practice with a test
We'll continue using a single Units column.
Step 2: Addition
Units
In words: Zero
Example: 3 + 2
1. Set 3 (3 Earth beads)
2. Add 2 (click 2 more Earth beads up)
Total = 5
Try adding numbers yourself!
Step 3: Subtraction
Units
In words: Zero
Example: 7 - 4
1. Set 7 (Heaven + 2 Earth)
2. Subtract 4 (remove 4 Earth beads or adjust)
Total = 3
Practice subtracting!
Step 4: Little Friends
Units
In words: Zero
Little Friends are pairs that add to 5:
1 + 4 = 5
2 + 3 = 5
Try making 5 using little friends!
Step 5: Level 2 Test
Units
Question 1:
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