Levels · 段階

Choose the level your hands are ready for

Begin honestly. The fastest progress comes from starting where your hands and mind feel stable, then moving up with clean repetition.

Best ruleChoose the highest stable level
If your pace feels shakyStay one level lower
If unsureStart with L0 or L1

Levels

Choose your current level

Pick the level that feels stable today, then move upward after one clean session.

What feels stable?

Pick the highest level where you can still read, set, and solve calmly.

What still feels slow?

If carrying, complements, or sign changes still wobble, start below that pressure point.

When to move up?

Move upward after one clean session, not just one lucky answer.

L0 · 零

Foundations

orientation, reading numbers, first movements

L1 · 一

Beginner

guided addition and subtraction

L2 · 二

Basic Operations

complements and steadier drill work

L3 · 三

Intermediate

mixed operations and faster accuracy

L4 · 四

Advanced

complex drills, pacing, independence

L5 · 五

Mastery

mental soroban and refinement