Is there anything more basic than adding 2 numbers together? How hard can it be? Well...if you've got so much experience, let's see how good you are! So you think you can add? Take the challenge and find out! The game is very straightforward and simple...and highly addictive - The game consists of a 3x3 grid. 5 numbers are generated at random, in random places on that grid. There are 4 different game modes to choose from: ★ Classic: You get 90 seconds to find as many combinations as possible. Scoring a correct combination gives you 3 seconds more, whereas a wrong combination will deduct 5 seconds from your remaining time. ★ Rush: Score as many combinations as you can in 90 seconds. No time bonuses or deductions. ★ Infinity: Play and practice for as long as you want without any time restrictions. ★ Epic: Take the challenge (if you dare): in Epic mode, the sum is given to you before hand, and you have to use as many tokens as possible from the grid to form it. Same time rules apply here! Score higher by using more tokens to form the sum. To make a combination, you have to select the "SUM" first, followed by the two numbers that add up to the sum. • Correct combination: 20 = 8 + 12 OR 20 = 12 + 8 • Wrong combination: 8 + 12 = 20 OR 12 + 8 = 20 Each time you pass a level, you get a bonus 30 seconds of more time. Time bonus: Can only be secured in the "Classic mode" by one of the following ways:- - Game duration > 300s = +1000 points. - Game duration > 420s = +2000 points. - Game duration > 500s = +3000 points. Other important features: ☆ Different game modes. ☆ Various levels of difficulty. ☆ Compete with friends! ☆ Play offline: no internet connection required to play. ☆ Small size. ☆ Sleek and nice looking UI. ☆ Statistics to see how you're doing. ☆ The most challenging - and addictive - math game in the Play Store! ★ Note: Not only are these kind of games fun, but scientifically proven helpful to train your brain and make it think and respond faster. Enjoy! See what the App Review sites have been saying about Sum - Math Challenge: ★ XDA-Developers ★ "Simple Math Puzzles Turned Engrossingly Fun" ★ Talk Android ★ "What is even more impressive is the game features no ads and no permissions. I don’t see any reasons not to give this one a shot." ★ Listed on Product Hunt ★