TalentJR apps
Ask a friend to think of a number, do some steps and tell you the result — then “read their mind” and say the number they started with. The secret is working backwards: undo the last step first.
✓ You passed this trick’s test.
Undo the steps — “to find the start number, undo each step from the last to the first”
Use it for: Magic tricks for family and friends, and solving “I think of a number” puzzles in school tests.
Check: 7 × 3 + 4 = 21 + 4 = 25 ✓
Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 🔮 Mind Reader badge when you pass — and a certificate when you finish all 5 tricks of Part 2 · Number magic. 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 and visit homes in selected cities. Tell us what you need and our team will call you with timings and fees.