My second entry - this time I double checked and made sure ALL the information was there before I cut an printed it Made originally for our four year old niece and people just loved it.
This was done on the 1/4" MDF from Home Depot.
The uploaded file actually has two cut-outs per number to make it easier to get the numbers out.
I realized I never listed my settings for this. Sorry
For 1/4 MDF from Home Depot I use
Number of Passes: 2
Adding a second pass seems to allow the pieces to be just a tad looser and easier for kids to take out without them being so loose they fall out on their own.