Numbers and Counting Steps 4 & 5 Workbook introduces beginning math skills such as adding to five and subtracting within five. Your child will learn how to recognize and write a plus sign, minus sign, and equal sign. The number line is presented as a visual tool that helps young learners identify how many in all (addition) and how many are left (subtraction). Mark milestones in your child’s workbook with the star stickers included with the pack. Enjoy Kazoo the Babysitter, a sticker storybook with hands-on addition practice, as well as Field Mice Day, a delightful story featuring subtraction.