Interactive Abacus & Mental Maths Tools
Sharpen mental calculation speed, explore interactive Soroban bead mechanics, visualize step-by-step formula rules, and generate print-ready competition sheets.
Mental Maths Practice
Test and sharpen mental arithmetic in Addition, Subtraction, Multiplication, and Division with real-time feedback, streaks, and countdown timers.
- 10 to 50 question rounds
- Untimed or timed (3s to 15s)
- Instant score & streak analytics
- No login required
Digital Soroban Abacus
Experience the authentic Japanese Soroban (1 Upper Heaven bead + 4 Lower Earth beads per rod) with touchable beads, place labels, and reading quizzes.
- Strict 15-rod competition layout
- Mobile, iPad & desktop views
- How Numbers Look 0-9 guide
- Interactive bead-setting quiz
Step-by-Step Sum Explainer
Enter any sum to see animated step-by-step bead movements, finger guidance, Small Friends (+5/-5), Big Friends (+10/-10), and Combination Friends.
- Multi-digit addition & subtraction
- Multiplication (2×1, 2×2, 3×2)
- Division with Formula A − B rules
- Auto-play & speed control
Sheet & Exam Paper Generator
Generate printable worksheets and national competition mock tests with custom formula filters, rows, digits, answer keys, and digital solve mode.
- A4, Legal & A3 paper formats
- Print layout with student blanks
- Strict abacus column formatting
- Instant printable answer key
Future Competition & Practice Modules
Oral Dictation Practice
Oral teacher voice dictation drills with custom bead sounds, voice input, and international speed calculation countdowns.
Maths Logic & Puzzles
Mathematical emoji logic puzzles, number sequences, and visual reasoning matrices for cognitive skill building.
Rubik's Cube Speed Timer
Official WCA scramble notation, inspection stopwatch, solve time analytics (Ao5, Ao12), and beginner/CFOP solving guides.