Bridging multiples of 10 - Addition and subtraction

Differentiated worksheets for three ability groups, made for Year 3, but adaptable. There is a sheet of addition and a sheet of subtraction for each group. I printed them back-to-back and sent them out for homework after doing a few lessons on both, but they could be used separately too to introduce or consolidate the concept. There is also a QR code on the top of the sheet which links to a really useful youtube video that demonstrates the method very simply - great for parents who needed to understand the method we used so that they could work with their children at home!