Number types, fractions, indices, standard form, ratio, percentages, bounds and surds.
Primes, factors, multiples, and finding HCF and LCM by prime factorisation.
Converting between them and calculating with fractions.
The laws of indices and writing very large or small numbers.
Sharing in a ratio, direct and inverse proportion, and percentage change.
Rounding, estimating, and the upper and lower bounds of a measurement.
Simplifying exact roots and rationalising denominators.