Counting
http://www.abc.net.au/countusin/
http://www.ictgames.com/counting.htm
http://www.funbrain.com/count/index.html
http://www.oswego.org/ocsd-web/games/DogBone/gamebone.html
http://www.funbrain.com/guess/index.html
Number identification
http://www.funbrain.com/ofm/index.html
Basic facts
http://www.ictgames.com/doubles.htm
http://www.ictgames.com/bridgingThro.htm
http://www.aplusmath.com/Flashcards/addition.html
http://www.coolmath-games.com/1-number-games-01.html
http://www.primarygames.com/math.htm
http://sample.iboard.co.uk/player/frameset.htm?id=library-all/xw4EF3jp9UQ3Ne3sROlIS
Addition and subtraction
http://www.ictgames.com/addition.htm
http://www.ictgames.com/subtraction.htm
http://www.funbrain.com/football/index.html
http://www.funbrain.com/math/index.html
http://www.woodlands-junior.kent.sch.uk/maths/numberskills.html
http://www.mathsisfun.com/numbers/addition.html
http://www.mathsisfun.com/numbers/subtraction.html
http://www.funbrain.com/osa/index.html
http://www.learningmedia.co.nz/staticactivities/online_activities/alien_addition/
http://www.funbrain.com/algebra/index.html
http://www.arcademicskillbuilders.com/
http://tutpup.com/plays/new/1-maths-game
http://www.funbrain.com/fractop/index.html
Multiplication and division
http://www.ictgames.com/multiplication_rounding.htm
http://www.woodlands-junior.kent.sch.uk/maths/timestable/index.html
http://www.woodlands-junior.kent.sch.uk/maths/division.htm
http://www.mathsisfun.com/tables.html
http://tutpup.com/plays/new/4-times-tables-game
http://www.mathsisfun.com/numbers/division.html
http://www.funbrain.com/cracker/index.html
Decimals, fractions and percentages
http://www.ictgames.com/equivalencePage.htm
http://www.woodlands-junior.kent.sch.uk/maths/fractions/index.htm
http://www.mathsisfun.com/decimals-menu.html
http://www.mathsisfun.com/percentage-menu.html
http://www.funbrain.com/fract/index.html
http://www.mathsisfun.com/fractions-menu.html
Place value
http://www.ictgames.com/placeValue.htm
http://www.woodlands-junior.kent.sch.uk/maths/interactive/numbers.htm#Place
http://www.funbrain.com/tens/index.html
General
http://www.worldmathsday.com/2010/Default.aspx
http://www.amathsdictionaryforkids.com/