In Year 5 we are taught to:
In Year 5 the children are expected to:
identify multiples and factors, including finding all factor pairs of a number, and common factors of two numbers.
know and use the vocabulary of prime numbers, prime factors and composite (non-prime) numbers
establish whether a number up to 100 is prime and recall prime numbers up to 19
multiply numbers up to 4 digits by a one- or two-digit number using a formal written method, including long multiplication for two-digit numbers
recognise and use square numbers and cube numbers, and the notation for squared (2) and cubed (3)
solve problems involving multiplication
multiply whole numbers and those involving decimals by 10, 100 and 1000
In Year 5, the children are expected to add four and five digit numbers using formal written methods and add increasingly harder numbers, mentally. They use place value to support with adding numbers mentally.