Old Mother Hubbard is baking cookies so her cupboards won’t be bare anymore! She bakes 109 cookies in all. She bakes the cookies on 4 cookie sheets. Each cookie sheet is arranged into equal rows and columns, but not every cookie sheet has the same number of rows and columns.
Using digits 0-9, at most once, how might the cookies be arranged on the cookie sheets?
This challenge would be great to use with intermediate grades.
*From openmiddle.com