3 number select 1 and 2 The sum of the digits is 3 the same as number consumption as number to delete a game.< br>all the numbers if I erase clear.< br>number of digits is 12~48.< br>number will increase as more difficult.< br>checked memory and training the brain training app.< p>It is a number required in a game which chooses three numbers, makes it the same as the 1st and the 2nd sum total [ 3rd ] of a number, and erases the number.

It will become clear if all the numbers are erased.

There is a digit number of a number to 12~48.

It becomes difficult whenever the number increases.

It is a brain training application which trains mental arithmetic and memory.