Mental maths should help test plausibility rather than become a speed contest.
Move gradually from calculations to statistical intuition and reading charts without manipulation.
Start with practice
Math Sprint offers ten short calculations at your own pace.
Start with numbersFrequently asked questions
Does speed matter?
Accuracy comes first. Speed is meaningful only when answers are consistently correct.
Should I use a calculator?
Not during the exercise; in real decisions a calculator is useful for verification.