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Target
A classroom numbers challenge for mental arithmetic, order of operations, brackets, and strategic calculation. Every round is guaranteed to have an exact solution to reveal.
Four operationsMental arithmeticOrder of operationsStrategy
Four operations
Hit the target number.
Choose six number cards, use any of them at most once, then prove your answer in the checker.
Best timed score-0 rounds played
Round settings
Apprentice difficultyTargets 75-400. Solutions usually use 3-4 cards and 2-3 operations.
A balanced classroom round with more choice but still reachable mental steps.
Small numbers4
Classroom instructions
- 1. Use any number cards you like, but each card can be used at most once.
- 2. Add, subtract, multiply, divide, and use brackets to control order of operations.
- 3. Every generated round has at least one exact solution, available on the solution button.
- 4. No-timer rounds are practice only. Timed rounds score exactness, speed, timer ambition, and incorrect checks.
Timed scoring
Exact timed answers start from 70 points, add up to 20 speed points, then add an ambition bonus for shorter timers: 30s +10, 45s +8, 60s +6, 90s +3, 120s +0. Each incorrect check deducts 8 points. Running out of time scores 0.