Sum Is description

Compete against thousands of players or friends live online in a number addition contest. "Sum is" is a simple mathematics game where you have to add numbers from the grid to make sum equal to given number. You can drag your finger to make the target sum. You are allowed to combine vertically, horizontally and diagonally adjacent numbers. The longer the combination is, the more points you will get. You will get bonus points also depending on your speed to make the sum.