Chapter 1: Computation with integers Notes

Number properties, divisibility and prime factorisation, HCF and LCM using primes, and all four operations with negative integers, the order of operations and substitution.

Sections

  1. 1A Prime factorisation, HCF and LCM Mastered

    Writing numbers as products of prime factors, and using prime factorisation to find the highest common factor and lowest common multiple of large numbers.

  2. 1B Adding and subtracting negative integers Mastered

    Adding and subtracting negative integers using the number line and the rules a + (−b) = a − b and a − (−b) = a + b.

  3. 1C Multiplying and dividing negative integers Mastered

    Multiplying and dividing negative integers, powers of negative numbers, and working with several negative factors.

  4. 1D Order of operations and substitution with integers Mastered

    Using the order of operations with negative numbers, including powers and grouping symbols, and substituting negative values into algebraic expressions.

Formula sheet