65 Addition Worksheets for Grade 3

Three-digit addition practice for Grade 3: 65 worksheets of 16 sums each, most needing regrouping, with a matching answer-key page after every worksheet.
Grades
Grade 3
Pages
132
File type
PDF
Answer key
Included

Updated Sep 27, 2026

Subject
Addition and Subtraction, Math
Topic
Addition, Worksheet
Resource types
Worksheets & Printables
Answer key
Included

From the author

About this resource

Help your Grade 3 students master addition with confidence using this Grade 3 Addition Pack! With 65 printable worksheets, students will practice multi-digit addition, regrouping, and problem-solving—all while strengthening fluency and accuracy. Each worksheet is no-prep and includes an answer key, making math time smooth and stress-free.

What’s Included

✅ 65 black-and-white worksheets
✅ Multi-digit addition with and without regrouping
✅ Real-world word problems for applied practice
✅ Mixed review pages for extra reinforcement
✅ Clearly organized format for independent work
✅ Complete answer keys for all pages

How It Works in the Classroom

Use these worksheets to support a variety of learning settings:

🧮 Daily math warm-ups or centres

✏️ Independent or small-group practice

🏠 Homework, assessments, or sub plans

💡 Test prep and spiral review activities

Learning Goals

Students will:

  • Add within 1,000 using place value and regrouping strategies

  • Strengthen accuracy and computational fluency

  • Apply addition skills to real-world problems

Why Teachers Love It

⭐ Saves prep time — just print and teach!
⭐ Gradually increases in difficulty for easy differentiation
⭐ Builds essential math confidence and fluency
⭐ Supports mastery of foundational addition skills

Empower your students to become confident problem solvers with this ready-to-print Grade 3 Addition Pack—a perfect addition to your math toolkit!

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Add three-digit numbers with and without regrouping

Skills covered

  • Regrouping — carrying to the next place when a column sum reaches 10 or more

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Resource details

Concepts & topics

Core concepts

  • Addition

  • Regrouping

  • Place value

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