Please visit these sites regularly and have fun playing the games and keeping your math's skills fresh.
Top Marks Maths GamesLots of maths games available to allow children to practise their skills. Please focus on the basics - times tables, halving, doubling, telling the time, using money including change
Maths FrameParticularly good for multiplication and divsion and simulates the multiplication check (The MTC) that the children will be sitting in year 4, but also offers a range of activities across the curriculum
BBC SupermoversPractise and revise your math's skills while learning funky songs and busting some moves. This could be part of your daily PE too. They also have English and Science sections and more.