Brain Training Addition

How to play
  - This game is to add the numbers that appear on the left and right to match the numbers in the middle.
  - There is no restriction and it is possible to play freely.
  - The first 15 seconds, the correct answer will be given an additional 5 seconds, up to 30 seconds will be filled.
 
Game Features
  - It is a basic mountain range so anyone can play it.
  - This game is useful for children.
  - It is a game that brings concentration through activating the frontal lobe.
  - It can be enjoyed by everyone with its neat design and simple structure.
  - It is possible to compete with various users through leaderboards.
  - Please enjoy a lot. Thank you.