There's lots of Maths activities here but why not try out some recipes too? Just make sure that clearing up the kitchen is carried out by the children!
Corbett Maths 4 levels increasing in difficulty for KS2, different everyday!
Nricha range of activities. Some are interactive and some are to be completed offline. Activities are categorised by age range.
Top Marksa range of interactive maths games categorised by age group.