← Free Battles

Live Quiz Battles for

Math Classes

Run a live math quiz battle in under 60 seconds. Full LaTeX equation rendering for calculus, linear algebra, statistics, and more. Students join with a code — no accounts, no downloads.

No student accounts • Unlimited participants free • Manual creation free forever

Why Math Instructors Use LRNRS

LaTeX rendered on every device

Write real math. LRNRS renders LaTeX like $\int_0^\infty e^{-x^2}dx$ and $\lim_{x\to 0}\frac{\sin x}{x}$ inline in questions and answer choices — on every student's screen.

Concept checks before problem sets

Run a quick 3-question battle on derivatives or matrix operations before assigning homework. Spot misunderstandings while there's still time to address them in class.

Generous time limits for calculation

Set 60-120 second time limits so students can actually work through the problem. Battle Mode isn't just trivia — it's a live assessment tool that works for real quantitative questions.

Exam review leaderboards

Build a 10-20 question review battle before midterms or finals. Real-time leaderboards drive engagement, and post-battle accuracy stats show exactly where students struggled.

Topics Instructors Use LRNRS For

  • Limits, derivatives, and the chain rule
  • Integration techniques and applications
  • Linear algebra: matrices, determinants, eigenvalues
  • Differential equations: separable, linear, second-order
  • Statistics: hypothesis testing, confidence intervals
  • Probability distributions and expected value
  • Series and sequences: convergence tests
  • Multivariable calculus: gradients, partial derivatives

Free vs Paid

Free (forever)

  • Up to 10 questions per battle
  • Unlimited participants
  • Real-time leaderboard
  • Post-battle accuracy stats
  • No student accounts

Paid tiers (optional)

  • Up to 40 questions per battle (Creator Monthly, $9.99/mo)
  • 30 monthly AI credits included (Creator Monthly)
  • AI credit packs (3/$1.99, 10/$4.99, 30/$11.99, 100/$29.99)
  • CSV import for question banks
  • Async Campaign mode (homework battles)
  • Remediation battle generation

Run your first math battle today

Manual question creation is free. Write 3-4 calculus or algebra questions using LaTeX, launch, and see how your class performs in under 60 seconds.

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