TalentJR apps
Almost every mental maths strategy starts with knowing which numbers go together to make 10 and 100. Once these pairs are quick, adding and giving change become easy.
✓ You passed this lesson’s test.
Make 10 — “know which pairs fill up a ten or a hundred”
Use it for: Giving change from ₹10 or ₹100, finishing a ten while adding, and checking subtraction.
Check: 64 + 36 = 100 ✓
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 🤝 Bond Builder badge when you pass — and a certificate when you finish all 7 lessons of Part 1 · Mental addition & subtraction. 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.