Basic 3-Addition Practice Answer Key

Students solve addition equations that focus on adding 3 to various single-digit numbers. Each problem includes a blank box for students to write the correct sum. This format reinforces the concept of counting on by three and helps learners develop automaticity with +3 facts. Through repetition and pattern building, students improve accuracy and confidence with this essential addition skill.

Curriculum Matched Skills

Mathematics – Addition Fluency (Adding 3)

Mathematics – Counting On by Threes

Mathematics – Mental Math Strategy Development

Mathematics – Basic Computation Accuracy

This worksheet is part of our Addition Facts With 2 and 3 Worksheets collection.