The BBC Skillswise website has a quite nifty game to complement times tables learning: http://www.bbc.co.uk/skillswise/game/ma13tabl-game-tables-grid-find
http://www.icteachers.co.uk/children/sats/maths_problems.htm - SATs style question walk-through
http://www.amathsdictionaryforkids.com/dictionary.html - maths glossary
http://www.senteacher.org/Print/Maths/ - printable maths resources to aid learning at home.
http://www.bbc.co.uk/skillswise/maths - tutorial maths for adults and also suitable for KS2 children too.
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 look-up resource for maths vocabulary
http://www.aaastudy.com/men.htm - lots of examples, demonstration 'walk-throughs' 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/apps-2/12-of-the-best-math-ipad-apps-of-2012/ - got a tablet? Why not check out some of these maths downloads!
http://nces.ed.gov/nceskids/grabbag/math_teasers/challenge.asp - Word problems
http://www.puzzles.com - full of online number, sequences, logic and jigsaw puzzles. Hours of productive fun!
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.web-games-online.com/mastermind/index.php - mastermind style colour code-breaking 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/arithmetic-training.php - full of mental arithmetic games (look at the training activities in the left margin too)
http://www.netagency.co.uk/keyedin2/satsprep.html - online SAT questions for KS2 and KS3 questions (high achievers) - the work is marked online for instant checking too!
http://www.netagency.co.uk/Flash/mental_dec1.html - mental arithmetic online self-marking test.
http://www.netagency.co.uk/Flash/mental_add1.html - mental arithmetic online self-marking test.
http://www.netagency.co.uk/keyedin2/mental.html - a whole range of online self-marking tests.
http://www.netagency.co.uk/keyedin2/adventure.html - a maths adventure game.
http://www.mathgoodies.com/games/ - another interactive maths games and challenges site (suitable for strong mathematicians).
http://www.cut-the-knot.org/ - lots of interactive maths games and challenges (suitable for strong mathematicians).
http://www.emaths.co.uk/KS2SAT.htm - Juniors: actual previous year SAT tests.
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.syvum.com/kwps1/ - Word problems
http://uk.ixl.com/math/reception < click on a suitable Year group to best challenge your child.
http://www.conceptispuzzles.com/index.aspx < some good challenges here.
http://www.tutpup.com/plays/new/4-times-tables-game - compete against others in a times tables challenge.
http://www.tutpup.com/plays/new/3-maths-mix-game - as above but with a mix of - + x and / questions.
http://www.y8.com/games/Tower_Blaster - a number ordering strategy game.
http://www.web-games-online.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://beam.co.uk/mathsofthemonth.php - lots of resources and worksheets to download and support learning.
http://www.funbrain.com/brain/MathBrain/MathBrain.html - games in which you control the level of mathematical challenge.
http://www.mathschamps.co.uk/ - has age-appropriate mental arithmetic games.
http://www.emaths.co.uk/KS1SAT.htm - Infants: actual previous year SAT tests.
http://www.teachingtreasures.com.au/maths/FlashcardClock/flashcard_clock.htm - assistance with telling the time.
http://www.rinkworks.com/games/ board games.
http://www.rinkworks.com/pips/ card/dice games.
http://www.andrewjeffrey.co.uk/uploads/PV_Cards.pdf - a useful resource to print off and use at home.
Card Tricks and Number Magic