Interactive Soroban course · Ages 6–12

Soroban Mental Math for Kids

Build real math skills, focus, and confidence with fun, interactive Soroban lessons. Learn at your own pace, on any device. The first world is free.

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World 1 free8 courses34 worlds205 lessonsAges 6–12

A smiling child moving beads on a wooden soroban

Course 1 · Beginner Soroban

Six Fun Worlds to Explore

6 worlds · 37 lessons · Worlds 1–6

World 1

Meet Your Soroban

Learn the beads and numbers 0–9

6 lessons

World 2

Place Value

Build two-digit numbers

6 lessons

World 3

Direct Operations

Add and subtract with confidence

7 lessons

World 4

Friends of 5

Make faster calculations

6 lessons

World 5

Friends of 10

Work across ten

6 lessons

World 6

Mixed Operations

Put it all together

6 lessons

Course 2 · Big Numbers: Add & Subtract

Big Numbers: Add & Subtract

Build confident three-digit addition and subtraction.

4 worlds · 24 lessons · Worlds 7–10

World 7

Hundreds

Read and build numbers through 999.

6 lessons

World 8

3-Digit Addition

Add across ones, tens, and hundreds.

6 lessons

World 9

3-Digit Subtraction

Subtract across ones, tens, and hundreds.

6 lessons

World 10

Mixed 3-Digit Math

Mix addition, subtraction, and a bead picture.

6 lessons

Course 3 · Multiplication Foundations

Multiplication Foundations

Build multiplication through groups, place value, and the Soroban.

4 worlds · 24 lessons · Worlds 11–14

World 11

Multiplication Means Groups

See multiplication as equal groups and repeated addition.

6 lessons

World 12

Build Your Times Tables

Learn useful facts with patterns, not drills.

6 lessons

World 13

Multiply Bigger Numbers

Multiply tens by one digit.

6 lessons

World 14

Two-Digit Multiplication

Split tens and ones, then add the parts.

6 lessons

Next: Division Foundations

Course 5 · Advanced Soroban

Advanced Soroban

Build bigger numbers, solve multi-step calculations, and become fluent with the Soroban.

4 worlds · 24 lessons · Worlds 19–22

World 19

Four-Digit Numbers

Read and build numbers through 9,999.

6 lessons

World 20

Four-Digit Add & Subtract

Add and subtract across all four rods.

6 lessons

World 21

Calculation Chains

Keep a running total through several moves.

6 lessons

World 22

Soroban Fluency

Accurate, smooth practice before mental math.

6 lessons

Course 6 · Mental Soroban Foundations

Mental Soroban Foundations

Picture the beads, move them in your mind, and check your work on the Soroban.

4 worlds · 24 lessons · Worlds 23–26

World 23

See the Soroban in Your Mind

Remember bead positions before you move them.

6 lessons

World 24

Move the Beads in Your Mind

Picture small bead moves without touching.

6 lessons

World 25

Mental Friends of 5 & 10

Use the same friend moves you learned physically.

6 lessons

World 26

First Mental Calculations

Short chains and checking on the Soroban.

6 lessons

Course 7 · Mental Addition & Subtraction

Mental Addition & Subtraction

Calculate with the Soroban in your mind — direct moves, friends, and longer chains.

4 worlds · 24 lessons · Worlds 27–30

World 27

Mental Direct Operations

Picture direct bead moves until they feel automatic.

6 lessons

World 28

Mental Friends of 5

Use Friend-of-5 moves in your mental Soroban.

6 lessons

World 29

Mental Friends of 10

Carry and borrow with Friends of 10 in your mind.

6 lessons

World 30

Mental Add & Subtract Mastery

Two- and three-digit mental calculation with calm checking.

6 lessons

Course 8 · Mental Math Fluency / Anzan

Mental Math Fluency / Anzan

Quick recognition, flash sequences, and calm personal fluency.

4 worlds · 24 lessons · Worlds 31–34

World 31

Quick Mental Image Recognition

Make Soroban number images automatic.

6 lessons

World 32

Longer Mental Chains

Keep a mental board across several moves.

6 lessons

World 33

Flash Anzan Foundations

Calm flash-style mental calculation.

6 lessons

World 34

Mental Math Fluency

Accuracy, pacing, and personal fluency.

6 lessons

See Full Curriculum →See all 205 lessons

Hands-on learning

What is a Soroban?

A soroban is a powerful tool for mental math. Move the beads, see the number change, and build real understanding.

Start with one bead

Start Free

See it

Watch the number change.

Move it

Drag the beads like a real soroban.

Picture it

Build mental math step by step.

Calm motivation

Rewards that keep them motivated.

Earn stickers, badges, and fun rewards as lessons are completed — without noisy game mechanics.

See the reward collection

For parents

See their progress at a glance.

See completed lessons, first-try understanding, and where a little extra practice will help.

How progress works

Parent ProgressLearning at a glance

Open progress

0Lessons

—First try

—Practice

Meet the SorobanReady to learn

Clear to ZeroReady to learn

Make 1–4Ready to learn

Begin with one bead

Try the first lesson together.

No download, account, or physical abacus required.

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