ACT Math
Mental math practice for ACT Math
The ACT is sat for undergraduate admission to universities across the United States, and mathematics is one of the tests making up the composite score. Use Daily Sharpen to practise mental maths skills as part of your preparation for the test.
ACT Math, in numbers
45 questions in 50 minutes, four answer choices
- Calculator
- Permitted
- Formula sheet
- None supplied
- Scored
- 1–36
- Negative marking
- None, so answer every question
Set by ACT Education Corp. Test facts verified against published materials in August 2026.
Try a Mini Sharpen
20 second Mini Sharpen
20 seconds of problems. See how many you can get.
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What you practice
- Times tables, mental multiplication and division
- Fraction arithmetic and clearing fraction equations
- Percentage / decimal / fraction and percentage change
- Ratio partition
- Unit-rate conversion with cancellation, incl. US customary units
- Squares, cubes and powers of 2 to instant recall
- Primes, factor pairs, GCD/LCM by inspection
- Surd simplification — answer choices are often exact surds
- Estimation to 1 s.f. for elimination
- Formula recall, since the ACT supplies none
- Pythagorean triples and special-triangle recognition to 2-second speed
Practice is tracked skill by skill: accuracy first, then speed, with later checks on what has stayed sharp.
Start your Sharpen
Personalized problems delivered in short daily sessions, tailored to the test you are preparing for.
- Choose your goal, and the practice is weighted for that test
- A calibration that finds the level to start you at
- Daily personalized practice sessions
- Lessons and extra practice whenever you want
- Track progress over time
Plus applicable sales tax, calculated at checkout. Cancel anytime.
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