Maths
http://www.mad4maths.com/telling_time/
http://www.woodlands-junior.kent.sch.uk/maths/timestable/interactive.htm
http://www.whizz.com/#
http://www.woodlands-junior.kent.sch.uk/maths/

literacy
http://www.bbc.co.uk/schools/spellits/
http://www.teachingandlearningresources.co.uk/homophones4.shtml
http://www.bbc.co.uk/schools/websites/4_11/site/literacy.shtml