Games
https://www.topmarks.co.uk/maths-games/7-11-years/times-tables
(interactive flash games for various subjects - Numbers, mental math, place values, add, subtract, multiply, divide, fractions, money, shapes, position, measurement. Use IE for school pc)
https://www.education.com/games/
(e,k)
Math games
http://www.arcademicskillbuilders.com/ I really like this site. Especially the multiplication/ division games, which are really useful for motivating the kids to memorise their tables.
http://www.arcademics.com/games/
http://www.abcya.com/ Games created by a teacher. Categorised by grades.
Select a grade and scroll down the page for the maths games.
http://www.bbc.co.uk/bitesize/ks2/maths/ A wealth of resources for numbers, shape, space and measures, and handling data. Includes games, notes and quizzes.
http://www.e-learningforkids.org select by subject/ grade