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Dividing by 9 needs only adding: the quotient digits are running totals of the digits, and the remainder is the total of all of them.
✓ You passed this trick’s test.
Nikhilam — “all from 9 and the last from 10”
Use it for: Any whole number divided by 9 (and a quick way to check divisibility by 9).
Check: 137 × 9 + 1 = 1233 + 1 = 1234 ✓
▶ Watch it animated✓ Written and checked by the TalentJR team · Updated 13 Oct 2026 · How we make our lessons
Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
20 sums. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 🥷 Nine Ninja badge when you pass — and a certificate when you finish all 10 tricks of Part 1 · Core tricks. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
Sign in with Google to ask Free — 20 questions a day.
Prefer a real teacher? TalentJR teachers take live online classes anywhere in India. Tell us what you need and our team will call you with timings and fees.