We kept plugging away until they got them. It was a small part of our daily math time, usually at the beginning. It didn't seem to be something that could be rushed with my particular kids.
Before dc got too much into algebra 1, I had them go quickly through a few Rod & Staff math books to review all the basic concepts, including the math facts. Most of it was done orally using white boards. I could see the weak areas, etc., using those bare bones books. Then, when I was sure they had all the basics down, I had them switch over fully to the algebra 1 books.
But it also see