Mental maths challenge
Mathematics25 series
As many maths questions as you can before the clock runs out. Four options per question, one right answer: on a keyboard, the 1 to 4 keys answer as fast as the mouse.
Choose your time
Choose your level
or press Enter
What can come up
Questions are drawn from every maths series. Each one is still there on its own, as a card wall, if you would rather work on it calmly.
- Times tables
- Order of operations
- Decimal form of simple fractions
- Fractions in lowest terms
- Sums of fractions
- Percentages of a number
- Arithmetic with signed numbers
- Squares and square roots
- GCD and LCM
- Powers of ten and scientific notation
- Unit conversions
- Pythagorean theorem
- Areas and perimeters
- Mean and median
- Linear equations
- Special products
- Rules of exponents
- Discriminant and roots
- Special values on the unit circle
- Logarithm and exponential
- Standard limits
- Standard derivatives
- Standard antiderivatives
- Term of a sequence
- Complex numbers