Ready made addition fluency cards, facts to 20.
Easy to use for independent or partner practice.
Copy on colored paper to make it more fun.
Give students a copy to keep in their desk to practice when they are finished early, or use them as task cards with a piece of paper.
Use partners to quiz each other, or just use them as flash cards in class.
****My favorite - have students pick a card, read and and answer the problem before they enter or leave the class******