I have quite a few of these workbooks and my only complaint about multiplication is that they are lined up. For example 4x1, 4x2, 4x3. I would have liked it even more if they mixed them up and put them out of order to really challenge the student to see if they know enough about their out of order facts. just my thought Oh, and a page is crooked, and half the problems fell off the page. But I love these workbooks and the way they keep the kids in the right columns!