The problem of 42 -- at least as it relates to whether the number could be considered the sum of three cubes -- has finally been solved. The question of whether every number under 100 could be ...

Represent teen numbers with addition and subtraction equations involving one 10. Represent 10 using a number bond and 10-frame with a missing addend. Use Notice and Wonder with a 10-frame, connecting ...

What is it? This app helps children enjoy and learn math in an entertaining and fun way. In a short amount of time they will control numbers and solve addition and subtraction challenges. Features: ...