Check out this fun and engaging with for students to practice their one digit addition skills. With 81 question cards. Each question card is meant to be glued or taped to the answer key which serves as the backing to each card. Students use a clothespin or binder clip or paperclip to cover one of the four answers on the bottom of each card which answers the question on the top. Once the pin covers the answer, they can flip over the card and find the correct answer showing an emoji on the back, which should also be covered by their pin. Kids will have a blast with this while they self-monitor their progress and can respond in the moment to correct their answers and clarify their misunderstandings. I would suggest printing it on color paper to make it even more fun! Directions for the teacher are included as well! Have fun!