Mixed +4 and +5 Fluency Answer Key

This worksheet mixes +4 and +5 facts in horizontal addition problems. Students must recognize which addend they are working with and adapt accordingly, promoting flexibility and stronger recall. Teachers can use this for spiral review, timed fluency checks, or independent practice.

Curriculum Skills

Mixed addition fact fluency (+4 and +5)

Rapid recall of single-digit sums

Switching between number patterns

Strengthening mental flexibility in computation

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