Play one of eight Arithmetic Invaders games to defend the solar system, learn the names of the planets and master the Kindergarten arithmetic. * Three counting up games * Two counting down...
Play one of eight Arithmetic Invaders games to defend the solar system and master the Grade 1 arithmetic. * Three addition games * Two subtraction games * Two multiplication games...
Play one of eight Arithmetic Invaders games to defend the solar system, learn the names of the planets and master the Grade 2 arithmetic. * Three addition games * Three subtraction games...