Lucky Number Bonds: Subtraction Within 20

Try your luck at solving subtraction in this helpful number bond worksheet! These six problems provide students with an incomplete number bond. Young mathematicians will need to find the missing number to complete each number bond, then write a subtraction number sentence that matches the number bond. 

Designed for first and second graders, this worksheet is a perfect activity for giving students practice with subtraction under 20. Learners will work on their subtraction fact fluency, and the number bonds can help them better understand subtraction and its relationship to addition. 

Students struggling with this worksheet should first try Lucky Number Bonds: Subtraction Within 10. For more festive math practice, try Pot o’ Gold Number Bonds: Addition Within 20 and St. Patrick's Day Puzzle: Addition and Subtraction Within 20.