Addition flash cards include 0-12.
I like to print these on card stock then laminate for durability :) You can use a sharpie to write the answers on the back if you would like, up to you!
*Tip* Print each number on different colored paper
*In the picture you can see where I store them, I purchased this little plastic holder at Walmart for $1 in the back to school section. The cards fit perfectly inside :)