A fun, addictive and a very simple game.
HOW TO PLAY:
-At first, the game chooses a random number (the target).
-You will start with the number 0 (the result).
-You need to add or subtract the random number that will appear on the top of the screen to make your number (the result) equal to the target.
-You can also multiply your number or divide it by 2.


The game has 6 levels :
-Level 1 : the target is X ± 50 ( x is a random number)
(example :if the target is 1450 ± 50 , you win if your number (the result) is any number between 1400 and 1500)

-Level 2 : the target is X ± 30
-Level 3 : the target is X ± 20
-Level 4 : the target is X ± 10
-Level 5 : the target is X ± 5
-Level 6 : the target is X ± 000 ( you must get the exact number)

good luck :D

Black Jack 777update :
unnecessary permissions removed (geolocation, ... )