These are great for early finishers in second or third grade. I'll be using these with my third graders at the beginning of the year, as review. They'll also benefit many of my students throughout the year, in keeping their fact fluency sharp. Check out the addition set also!Includes:0-10 subtractiontwo digit minus two digit subtractiontwo digit minus one digit subtractiontwo digit minus ten subtraction*Flash cards are just over 3"X3"