Double any 2 digit number
Half any 2 digit number
Know the factors of all times table answers up to 12 x 12
Multiply or divide a number by 10, 100, 1000 including decimals
Know by heart the squares of numbers between 1 and 12 and squares of multiples of 10.
Know number bonds to 100 for numbers with one decimal place
Recall prime numbers up to 30
Multiply pairs of multiples of 10 and 100 eg. 30 x 70