The app students actually ask their teachers for. From 1st grade to high school, solo or in class — with duels, badges and zero ads.
Addition, subtraction, multiplication, division, fractions, powers, equations and more
20 questions with combos, powerups and bonuses. 6 game styles: Normal, Endurance, Expert (zero mistakes), 3 Lives, Time Attack, Exam.
Practice multiplication tables one by one (1 to 15). A badge is unlocked for each table mastered without errors!
Challenge another player online. Same questions, same time. Win ELO points and climb the rankings!
Up to 32 players. The lowest scorers are eliminated each round. Last one standing wins!
Your school competes against others! Daily challenges, 3 attempts per day, weekly leaderboard.
Teachers pit two of their classes against each other for a week. Students play daily for their class!
Create a classroom session in 30 seconds via local network
Choose level, operation and game mode. Students join with a code. That's it.
Per-student breakdown: errors, wrong answers, accuracy. CSV and PDF export.
No data leaves the school network. No student email required. GDPR compliant.
I'm Laurent BOST, a school IT worker and dad of two kids in France.
I built Mental Math Challenge because every math app I tried for my kids was either full of ads, too basic, or paid after 5 minutes. So one Sunday afternoon I started coding a simple multiplication quiz. My son loved it. Then he wanted to play against his sister. Then against his class. Then against the school next door.
Today, teachers use the app in their classrooms to run mental math sessions. It's still 100% free, no ads, no tracking. Because kids deserve better than ads between divisions.
— Laurent, developer and dad of two demanding testers
Free, no ads, no account required