Operations and BODMAS, rounding, ordering and converting between fractions, decimals and percentages, squares and cubes, prime numbers, factors (or divisors), multiples, common factors, common multiples, highest common factor (HCF), lowest common multiple (LCM), prime factorisation, including using product notation, manipulating fractions, improper fractions and mixed numbers, the state and scale method, ratio, proportion and rates of change, percentages; percent increase, percent decrease, simple interest, scale factors, scale diagrams and maps