This resource is perfect for helping your students master their basic facts. This will help your students develop automaticity and fluency when solving simple mental math problems! Use this resource to have your students practice the "partners of ten" (friends of ten) strategy. Also, print the flashcards for your students to keep! I like to have my students write the answer on the back of their flashcards so that they can practice these on their own as an early finisher activity or to even play war with a friend!