TalentJR apps
Some percents have a shortcut you can do in your head. 50% is half, 25% is a quarter and 10% is one tenth — and from these you get 5% (half of 10%), 20% (double 10%), 75% (50% + 25%) and 1% (÷ 100).
✓ You passed this lesson’s test.
Halves and tenths — “50% is half, 25% is half again, 10% is one tenth”
Use it for: Tips, “10% off” offers, checking GST, and estimating any percent quickly.
🧮 Check your own sums with the free Percentage calculator — it shows the working.
Check: 5 × 360 = 1800, and 1800 ÷ 100 = 18 ✓
▶ Watch it animatedWork 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 ✂️ Half-It Hero badge when you pass — and a certificate when you finish all 5 lessons of Part 1 · What percent means. 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.
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