TalentJR apps
Before you trust an answer, check its last digit. In 47 × 36 only 7 × 6 = 42 decides the last digit, so the answer must end in 2. If it ends in anything else, it is wrong — no need to work it all out!
✓ You passed this trick’s test.
Last digits only — “the last digit of the answer comes only from the last digits of the numbers”
Use it for: Checking your homework and test answers, spotting wrong bills, and multiple-choice questions where only one option has the right last digit.
Check: 47 × 36 = 1692, which ends in 2 ✓
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 🔦 Mistake Hunter badge when you pass — and a certificate when you finish all 10 tricks of Part 4 · Clever counting & checking. 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.