Connect Sums iPhone/iPod Touch

Connect Sums is a "Math Doodles" challenge that provides plenty of addition and subtraction practice, within a recreational math setting. The mathematical puzzle allows users to play with different representations of numbers, while developing their number sense to create strategies to help them solve problems.

The Challenge

Users develop their number sense by trying to clear series of random values presented in a 4x4 array. Selected values are cleared when their sum equals the target sum. Users can choose from 25 different value representations and two levels of difficulty.