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👬

Big Brother

📘What it is

The Big Brother method — adding through 5! Add 5, then subtract the extra. The secret of the 5-bead!

🛠️How it works

8+3 = 8+5-2 = 11. Add 5, then subtract 2!

💡Why it helps

This technique teaches working with the 5-bead on the soroban — just like the pros!