More on decimal fractions, including some tricky estimating on number lines and calculator work which requires sharp mental skills.

Mental addition and subtraction of multiples of 100, including crossing over the thousands.

Without using paper and pencil practise adding three small numbers as well as adding two 2-digit numbers.

Mental addition and subtraction of 2-digit numbers. These are about as hard as you would expect to get without using written methods.

A reminder that subtraction is the inverse of addition, and how this can be useful when working out mental calculations.

Can you say which of these are true and which are false? A quick test of the relationship between addition and subtraction and what effect zero has.

Problems in words. Not too tricky, but ask how they were done as this reveals a great deal about children's thinking.

More mental arithmetic, doubling and halving multiples of 5. Should be a whizz if you are good at doubling!

Revision pages on adding to make multiples of 10 and subtraction of multiples of 10.

Quick timed challenge adding three or more small numbers as quickly as possible.

Without doing any working out on paper answer these adding several numbers questions.

Work out the addition questions in your head and just write down the answers.

Maths Worksheets

Maths Games