In Lisa's Magic Number, Lisa, the new girl in her neighborhood, invites Nina and Juan to guess her age using a math trick! In this title, learn how to use subraction to obtain a sum. This book is in the purple level of the Early Learning Fun Math Series and is perfect for first grade. This intermediate level of math fluency bundle for students features a skills section, math stories to read, quizzes, games, and coloring. On page Spanish language support is available by tapping the globe in the bottom right hand corner. On page parent support is available by tapping the handholding icon in the bottom right hand corner. Downloadable PDF Teacher Resources contains: pre and post tests, 3 teacher cards (skills, comprehension, ELL), family time flyer in English and Spanish, and rewards for hardworking students.