Progress with Oxford: Addition and Subtraction Age 5-6 builds adding and subtracting skills while helping your child to work independently. Engaging activities, fun characters and stickers keep them motivated and a progress chart captures their achievements. Additional activities and support on oxfordowl. co.uk all help to make progress fun. Giles Clare Progress w/ Oxford: Progress w/ Oxford: Addition & Subtraction Age 5-6 - Practise for School w/ Essential Maths Skills Multiple-component