3-Digit Addition Worksheets | 200 Practice Pages | 4,800 Exercises

Help students develop confidence and fluency in multi-digit addition with this collection of 200 printable worksheets featuring 3-digit addition with and without regrouping. Designed for Years 3–4 Maths (Ages 7–9), this resource provides structured practice that strengthens addition skills through repetition and gradual mastery.
Each worksheet contains 24 addition problems, giving students a total of 4,800 exercises for meaningful, consistent practice.

What’s Included
• 200 printable worksheets
• 3-digit + 3-digit addition problems
• Practice with and without regrouping
• 24 exercises per page
• 4,800 total addition problems
• Clear column-format layout
• No prep, ready to print

Skills Students Will Practice
• Multi-digit addition fluency
• Place value understanding
• Regrouping (carrying) strategies
• Accuracy and mathematical confidence
• Problem-solving skills

Perfect For
• Classroom lessons
• Daily math practice
• Homework assignments
• Math centers
• Independent practice
• Homeschool learning
• Skill reinforcement
Age Range: 7–9 years (Years 3-4)

Please note: This resource includes worksheets only. Answer keys are not included.