FLASH CARDS PUZZLE EASTER EGGS NUMBERS 0 TO 20 CONTENTS: In color: 4 sets of 21 cards Total: 84 cards To Black and White: 4 sets of 21 cards Total: 84 cards INSTRUCTIONS: Print, cut out, and use these cards to review numbers, associating the pictures with the amounts with each other for added recognition. We suggest printing this product on thick paper or cardboard, for better use