Ten Ten Ten

The main task is to collect ten in each cell.
You are given a random number that you need to set in one of the cells.
But do not forget that you are limited in time, add or subtract quickly and carefully.
Collect dozens and get points and become the first in the world leaderboard!

You have 3 cells, by clicking on one of them you set the number that appears.
To change a number to a positive or negative value, click on the button that is located below the main number.
Your task is to collect the number 10.