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.
Levels
Choose your current level
Pick the level that feels stable today, then move upward after one clean session.
Pick the highest level where you can still read, set, and solve calmly.
If carrying, complements, or sign changes still wobble, start below that pressure point.
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