The OctoMinus math app makes subtraction fun and engaging for kids. The app reinforces key math skills within an interactive gaming environment. OctoMinus is also designed to enhance motor skills for young children and kids with motor or cognitive delays. With the ability to customize game options, this app will keep kids motivated and engaged. Kids can also choose to practice in English or Spanish. The app is designed to improve visual attention, timing, coordination and control. Parents can also use this switch-accessible app to reinforce Individualized Education Program (IEP) goals for children with special needs.