Missing addends worksheets
Each print is a different sheet with its own answer key. You don't need to sign up.
Find the number that makes the equation true. Count up from the part you already know.
Two grades, each its own sheet. Print one here, or open a grade for examples and teaching notes.
Print by grade
-
1st grade Core grade
Each print is a different sheet with its own answer key. You don't need to sign up.
Missing-addend problems like 4 + ___ = 9 teach 1st graders that an equation is a question about a missing part. Your child counts up from the known number to find what fits, the same thinking that makes subtraction click.
-
2nd grade
Second graders use missing addends to move from computing answers to reasoning about them. Working backward from the total (what plus 3 makes 8) is the step that separates memorized facts from real number sense.
More on facts & fluency
All addition & subtraction worksheets →
Or all math worksheets: every grade, every topic.