A 100 Number square can come in useful for many math explanations so here’s a new one that will work on all devices including iPad, tablets and interactive whiteboards.
It lets you choose whether it runs from top to bottom or bottom to top. You can also choose if the numbers run from 0 to 99 or 1 to 100. Use the circular buttons to select the colour that touched tiles change to or change the whole lot using the coloured square buttons. White, in both cases, hides the numbers.
Go to the hundred square teaching resource.
Here is a different hundred square specifically designed to help with teaching addition.
Here is a hundred square with a timed activity for children to use to practise addition with.