This is a set of 20 subtraction task cards within the number 20. There is a page of directions, a recording sheet, an answer key and also QR codes on each task card. QR codes foster independence for your students by allowing them to self correct their work. I have also included 4 Bonus task cards and a Bonus recording sheet!
You can use these cards as a math center or as an activity for early finishers. I like to print them in color on white cardstock then laminate them to ensure their longevity in the classroom :)