A free app for Android, by njoyKidz.
The game is aimed at children between the ages of 4 and 8 years old. Children will learn to recognize the numbers 0 to 9 and solve simple arithmetic and mathematical problems. The game also offers a challenge to the brain and improves logic, attention, and memory.
The gameplay consists of the child drawing a number in a box and then filling in the corresponding blank in the drawing. For example, if the box contains the number 6, then the player must draw and fill in 6 in the empty box. The challenge in the game is to complete all the drawings in the fastest time.