Select Page

We’re planning on the soroban give away.
The first lesson will start soon as well as the Hangout one on one training sessions.

We’ll teach you 9 lessons that are:
Ninjutsu1: Addition and subtraction by regrouping at 5
This is the basic concept. You’ll learn to add and subtract by regrouping at 5.

Ninjutsu2: Addition and subtraction by regrouping at 10
You’ll learn to add and subtract by regrouping at 10.

Ninjutsu3: Multiplication
You’ll learn the basic one-digit times on-digit multiplication facts.

Ninjutsu4: Division
You’ll learn to use multiplication facts and subtraction concepts to divide on the soroban.

Ninjutsu 5: Decimal
Use the soroban to do addition, subtraction, multiplication and division.

Ninjutsu 6: Negative numbers
You’ll learn simple condition and rules to perform subtracting with a negative number.

Ninjutsu 7: Square and cubes
When you master the multiplication steps, you can learn square and cube easy and fast.

Ninjutsu 8: Square Root
You can easily adapt the method explained in this topic when you master topics 1-7.

Ninjutsu 9: Mental Calculations
By using the “Mental Soroban”, you can calculate quicker and improve your concentrations.