Subtraction up to twenty - Pirate Gamer Online

Subtraction up to twenty - Pirate Gamer Online For first, second, third, 4th grade math revision | Pirage Game | Math games online for children. Basic subtraction skills involving numbers up to twenty. Students will solve these problems through the medium of a pirate game that incites fun in a group and enables skills to learn seamlessly. Teacher and parents will find this game a lot fun.