Maths
KS2 
KS2 
KS2 
KS2 
KS2 
KS2

KS1 
KS1 
The BBC Skillswise website has a quite nifty game to complement times tables learning: http://www.bbc.co.uk/skillswise/game/ma13tablgametablesgridfind
http://www.icteachers.co.uk/children/sats/maths_problems.htm  SATs style question walkthrough
http://www.mathgoodies.com/articles/math_anxiety.html
http://www.amathsdictionaryforkids.com/dictionary.html  maths glossary
http://www.legend.yorks.com/~calverns/contents.htm
http://www.mathsmaster.org/  containing maths vocabulary explanations and example videos.
http://www.mad4maths.com/parents/  helpful ideas for maths talk at home and maths operation concept examples.
http://amathsdictionaryforkids.com/dictionary.html  a lookup resource for maths vocabulary
http://www.aaastudy.com/men.htm  lots of examples, demonstration 'walkthroughs' and activities for maths concepts
http://www.learningideas.me.uk/ma/tester.html  select the activity for your child and watch them improve. This site also gives good examples (through the activities of all those fancy maths terms, like Number Bonds, Factors, Roots etc.)
http://www.teachthought.com/apps2/12ofthebestmathipadappsof2012/  got a tablet? Why not check out some of these maths downloads!
Juniors
http://www.tangrams.ca/puzzles/puzzles.htm  creating images from shapes
http://www.freegames.ws/games/boardgames/othello/othello.htm  Reverse/ Othello
http://www.kidsmathgamesonline.com/boardgames/backgammon.html  Backgammon
http://www.kidsmathgamesonline.com/boardgames/yahtzee.html  Yahtzee! (Dice game)
http://www.y8.com/games/maths_power  race the clock in this number bond challenge
http://www.y8.com/games/double_digits  a multiple choice adding game involving bridging/carrying across the tens and hundreds
http://www.y8.com/games/batters_up_base_ball_math_addition_edition  a differentiated version of the above game
http://www.webgamesonline.com/mastermind/index.php  mastermind style colour codebreaking game
http://www.y8.com/games/plus_plus  select numbers which add together to equal the target number
http://www.19online.net/math/  mental arithmetic in a Pokémon style game
http://www.braintrainingpuzzle.co.uk/arithmetictraining.php  full of mental arithmetic games (look at the training activities in the left margin too)
http://nces.ed.gov/nceskids/grabbag/math_teasers/challenge.asp  word problems.
http://www.mathplayground.com/wordproblems.html  word problems.
Infants and Juniors
http://www.teachingtreasures.com.au/maths/FlashcardClock/flashcard_clock.htm  telling the time
http://www.prongo.com/tictac/  Noughts and Crosses
http://www.prongo.com/checkers/  Draughts
http://www.learn4good.com/games/board/battleship.htm  Battleships
http://www.fetchfido.co.uk/games/connect_4/connect_4.htm  Four in a row
http://www.mathplayground.com/wordproblems.html  Word problems
http://www.mathexercisesforkids.com/
http://www.mathsonline.co.uk/nonmembers/gamesroom/stick/index.html
http://www.conceptispuzzles.com/index.aspx < some good challenges here.
http://www.tutpup.com/plays/new/4timestablesgame  compete against others in a times tables challenge.
http://www.tutpup.com/plays/new/3mathsmixgame  as above but with a mix of  + x and / questions.
http://www.what2learn.com/home/examgames/maths/timestable1/
http://www.what2learn.com/home/examgames/maths/subtraction/
http://www.y8.com/games/Tower_Blaster  a number ordering strategy game.
http://www.webgamesonline.com/memory/  pairs style picture matching game.
http://www.genkienglish.net/maths/index.htm  streams its times tables songs through YOUTUBE but does not display comments boards.
http://www.abcya.com/math_bingo.htm  selecting different levels of challenge across the 4 operations.
http://www.mrnussbaum.com/mathgames.htm  a compendium of maths games. Well worth bookmarking/adding to your favourites!
http://math.usask.ca/emr/menu_arith.html  differentiated mental arithmetic with various operations to suit your child's needs.
http://www.mathschamps.co.uk/  has ageappropriate mental arithmetic games.
http://www.emaths.co.uk/KS1SAT.htm  Infants: actual previous year SAT tests.
http://www.andrewjeffrey.co.uk/uploads/PV_Cards.pdf  a useful resource to print off and use at home.