Math Fundamentals Steps 4 & 5 Workbook demonstrates the basics of subtraction to 10, introduces skills such as counting back on a number line, and presents practise with subtraction facts. Mark milestones in your child’s workbook with a sheet of star stickers included with the pack, and enjoy the storybooks Chow the Magician, which integrates the core concepts of fact families, and the fun-to-read story The Alien Picnic, which displays counting back on a number line.