Making a a Keno type game with 80 numbers that you can click

I have decided to try to make a KENO type game where a player chooses  3-10 numbers off of a board of 80 numbers  (from 1-80) lined up sequentially in 8 rows.

So first up is to create the board with 80 numbers being able to click on each number individually and mark it.  Normally what I would do is create a widget with an image of the number being clicked and line them up next to each other with 10 numbers per line with 8 rows.  That would be 80 widgets.  Each widget having its own touch event.

Is that the best way?  I’m concerned about having 80 widgets on the board with a touch event attached to each.  Would that tax performance?  Any suggestions on how to implement this the best way would be much appreciated.  Thank you!