Updated on Nov 1, 2026
New: Percentages & Fractions!
• Fraction → %: turn fractions like 3/8 into percents
• % → Fraction: write 75% as a simple fraction
• % of a number: find 25% of 80 in your head
• 5 difficulty levels, plus a cheat table with quick tricks
• Your choice when you're wrong: retry the question, or move on and see the answers at the end
Also: improved translations and more accurate times.
