Adding and Taking Away Activity Playbook helps your child learn the basic concepts of adding and subtracting up to 10. This playbook features funny, friendly characters, Bip, Bop and Boo, who use familiar situations, such as number of cookies or bubbles, to help children ages 2 to 6 move on from number recognition and counting to understanding simple maths. Adding and Taking Away Playbook shows children how maths is put into practice in everyday activities, helping them be curious, confident and capable.