SPIDER-MAN Addition & Subtraction Workbook & Flash Cards Set SPIDER-MAN Addition & Subtraction Workbook plus SPIDER-MAN Addition and Subtraction Flash Cards. 36 page workbook features a delightful SPIDER-MAN character on every page! Includes learning numbers 1-20, problem solving, basic math skills, and practice pages. 36 card set of colorful oversized Addition and Subtraction flash cards feature a picture of SPIDER-MAN on each card. Each card has the answer on the opposite side in the bottom right corner. This set will help your child with simple addition and subtraction facts. This workbook and flash card set makes learning addition and subtraction facts fun with SPIDER-MAN!