Free online Abacus Quiz by I-KIDz Abacus Academy. Practice reading soroban bead positions and type the correct number shown. The game uses a real soroban layout — 1 heaven bead and 4 earth beads per column. Active beads touch the centre divider bar; inactive beads sit away from it. Four difficulty levels: 1-digit (0–9), 2-digit (10–99), 3-digit (100–999), and 4-digit (1000–9999). Each question has a 15-second countdown timer. Track your accuracy percentage, correct count, streak, and full question history. Perfect for abacus students, kids learning mental math, and anyone practising soroban reading skills. No download required — works on mobile, tablet, and desktop.