Print, laminate, and go!! Perfect for a kindergarten math center! Covers CCSS standards K.CC.A.2,3,4a, in Counting and Cardinality. Students write in the missing number, up to 20, including those pesky teen numbers. :)
I purposely created these cards with black and white graphics because I realize how hard and expensive it can be to print all these wonderful, colorful activities on TpT! You could add color by actually coloring them or by printing them on colorful paper/card stock.