Woodlands Maths Games: a series of games to develop a number of maths skills including mental maths games
BBC skill wise games: games that are suitable for ECE. UK based
Crickweb: fun mental maths. you can choose the levels
Top Marks: arranged by year levels and games in Maths and English
Make your own interactive game: create your own or get the children to create a game.
Teaching and Learning resources website: huge set of links to various sites. Written in the UK.
Count us in: interactive games aimed at ECE
Concrete materials are commonly accepted as a necessary part of any teaching learning program in numeracy.
The National Library of Virtual Manipulative contains hundred (if not thousands) of links to various virtual manipulatives that fabulous for numeracy time, individual or IWB activities.
National Library of Virtual Manipulatives: Click for link
Other useful links
Five Frame: illuminations
Ten Frame: illuminations
Patterns : standards
Visual Problem Solving illuminations
Cuisinière Rods mathplayground
Adding Integers: nlvm
Number Line Bounce: nlvm.
Measuring Angles amblesideprimary
Surface area: nlvm.
Function Machine: mathplayground
Area & Perimeter mathplayground
Number Line .crickweb
Some more links courtsey of Peter Nolan
Basic Facts and Mental Computation
Early Childhood Number Skills