Find the HCF and LCM of two numbers
You practise: highest common factor and lowest common multiple
Aligned with the UK national curriculum. Tap, drag and sort your way through the exam methods that come up in every paper, and repeat each one until you understand it.
You practise: highest common factor and lowest common multiple
You practise: rounding whole numbers to the nearest 10, 100 and 1,000
You practise: divisibility rules for 2, 3, 4, 5, 6, 9 and 10
You practise: multiplying and cancelling fractions
You practise: equivalent fractions with the same denominator
You practise: writing repeated multiplication using powers and indices
You practise: expanding (a + b)² without losing the middle term
You practise: linear sequences and the nth term rule
You practise: gradient and y-intercept in y = mx + c
You practise: expanding brackets and collecting like terms
You practise: simultaneous equations by elimination
You practise: equations with brackets and x on both sides
You practise: combining two ratios that share a part
You practise: equivalent fractions out of 100 and percentages
You practise: percentage change from the original and new values
You practise: inverse proportion with y = k/x and y = k/x²
You practise: rearranging density = mass ÷ volume
You practise: compound interest as repeated percentage increase
You practise: alternate, corresponding and co-interior angles
You practise: SSS, SAS, ASA and RHS
You practise: acute, obtuse and reflex angles in degrees
You practise: SOH CAH TOA in right-angled triangles
You practise: order of rotational symmetry
You practise: finding a missing side with a² + b² = c²
You practise: averages from a frequency table
You practise: median, quartiles, range and interquartile range
You practise: the four averages from a list
You practise: angles, fractions and percentages in a pie chart
You practise: union, intersection and "only"
You practise: multiplying probabilities along the branches
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