My students each have a copy of these Math Facts in a "tub" that they work on in the morning for their Morning Work and throughout the day if they have extra time. I simply print a copy for each student, laminate them, then cut them and hold punch each in the corner and attach them with a binding ring. This is a great project to have a parent volunteer work on once the flashcards have been printed. Common Core State Standards ask Kindergarteners on up to be fluent in their grade levels specified math facts. My students love quizzing each other and themselves on these and have become very proficient in fluency of them because of them.