Big or small? In my view and in reason, the amounts can't ever be too big. Exhibiting stress from a young age on basic studentsí eyes by staring at the small printing may result in more powerful prescription lenses.
Worksheets aren't all made equal. There are essentially two different types: math fact sheets and long branch sheets. Math fact sheets are easy to make (with the branch symbol between the amounts ) and need few if any newspaper calculation from pupils.