2-Digit Addition Worksheets with Three Addends | 2,400 Exercises

Build strong addition skills with this collection of 100 printable worksheets featuring 2-digit addition with three addends. Designed for Years 2–3 Maths (Ages 6–8), this resource provides structured, repetitive practice that helps students develop fluency, accuracy, and confidence in multi-digit addition.
Each worksheet includes 24 carefully designed problems presented in both grid and column formats, for a total of 2,400 addition exercises.

What’s Included
• 100 printable worksheets
• 2-digit addition with three addends
• 24 exercises per page
• 2,400 total addition problems
• Grid and column formats
• No prep, ready to print
• Student-friendly layout

Skills Students Will Practice
• Multi-digit addition fluency
• Adding three 2-digit numbers
• Place value understanding
• Accuracy and mathematical confidence
• Problem-solving strategies

Perfect For
• Classroom math lessons
• Daily math practice
• Math centers
• Homework
• Independent learning
• Extra practice at home

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