Butterfly Number Bonds: Addition Within 20

Learning takes flight in this colorful addition worksheet! In each of these six problems, students will be given an incomplete number bond that is missing a sum. They will need to first find the sum and complete the number bond, then write an addition sentence that matches the number bond. 

Designed for first and second graders, this worksheet is a great choice for practicing simple addition. Number bonds clearly demonstrate the parts of an addition problem in a way that young learners can understand, reinforcing the part-part-whole relationship as students work on their addition fact fluency. 

Struggling with this worksheet? Try Butterfly Number Bonds: Addition Within 10. Keep practicing your addition skills with Compose and Decompose Within 20.