There may be fewer problems, depending on what is selected below.
Some of Both
Each problem will have one factor from the selections on the first list and one factor from the selections on the second list.
The numbers 0 through 99 will be used, if there are no factors selected in one of the lists
Commute the problems. (If 4 x 6 is selected, 6 x 4 will also be used, as will 24 / 6 and 24 / 4.)
Don't commute the problems. (If 4 x 6 is selected, 6 x 4 will not be used, nor will 24 / 4.)
If there are not enough problems to fill the page
Do not allow duplicate problems, even if the page is not filled.
Fill the page, even if it requires duplicate problems.