Whiteboard Calculator

Whiteboard calculator is an easy calculator for simple, everyday calculations that can be edited and recalculated. Like a whiteboard you can have several sums all going at the same time and you can change the numbers very easily.

There are no special buttons, you just use your keypad to write and edit numbers and text, then just click = to see the latest result. By returning to the screen you can (literally) add more numbers, edit the existing numbers or start a completely new calculation without losing the previous ones. In this way you can build a calculation based on earlier steps and see all those steps on screen.

No need to use + after every number, just stack them up and the column is added. This makes it really useful in a supermarket if you're trying to limit your spend to £50 so you can get the £10 off if you spend at least £50. There are lots of examples included with Whiteboard Calculator and these can be safely edited so you can practise. There is no learning curve, just a gentle path towards happiness.

If you already have Freeform Calculator you will find that Whiteboard Calculator is very similar, just a slightly different layout, easier buttons and a different branding to show that it's very much like a whiteboard insofar as you can rub out numbers and replace them with new ones.