Fill-the-Missing-Addend with +4/+5 Answer Key

Students determine missing addends in addition equations involving +4 and +5, reinforcing deeper number understanding. This worksheet strengthens fact family reasoning and encourages students to think about how addition relationships work in reverse. Teachers can use it as a diagnostic tool to identify conceptual gaps.

Curriculum Skills

Identifying missing addends

Understanding fact families and number relationships

Strengthening reverse addition reasoning

Building flexible thinking with +4 and +5 facts

This worksheet is part of our Addition Facts With 4 and 5 Worksheets collection.