I don't think DS had a 63 problem worksheet (I am not sure where that figure came from but if I used it, it was inaccurate) but he did bring home 5 pages from his workbook of triple digit add/sub. I think it was a few too many sheets at once for him. Dottie, what grades did your kids go through EM? I think we start to veer away from it around 4th gr with lots of supplemental items as determined by the teacher (some are great at this). We were also told that this year, several kids, including DS will begin pre-algebra etc. I am so reassured to hear that your kids have gone through this program with success! Did you have to supplement it with any other items? At this point, we don't do anything extra with DS. He finds subjects he enjoys and "researches" them... That is why trying to teach him multiplication is so challenging. We don't really "work" with him at all. Thanks for your insight and to all who have posted.