This teacher-approved Step Ahead workbook from Golden Books is a great guide to addition and subtraction for 1st and 2nd graders—now in a deluxe edition with twice the pages and over 70 colorful stickers. Perfect for back to school—no matter what that looks like! Carefully planned by teachers to complement the school curriculum, every Step Ahead workbook provides positive learning experiences through a variety of kid-friendly activities. In Additon and Subtraction , children will learn about: •Addition •Subtraction •Solving fun number puzzles