3rd Grade Addition Worksheets

Practice third grade addition skills with our printable 3rd grade addition worksheets. This collection includes 2-digit, 3-digit, 4-digit, and 5-digit addition, addition with regrouping, multiple addends, word problems, partial sums, addition properties, and more. Students can strengthen addition fluency with worksheets, games, task cards, puzzles, and other printable activities.

  

3rd Grade 2-Digit Addition Activity: Partial Sums (with Example) Printable PDF Worksheet   FREE 

  

3rd Grade 2-Digit Addition Activity: Partial Sums Printable PDF Worksheet

  

3rd Grade Graph Paper Adding Activity (2-Digit, Partial Sums) Printable Addition PDF Worksheet

  

3rd Grade Partial Sums Outline Example (2-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade Partial Sums Anchor Chart Tool (2-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade 3-Digit Partial Sums Addition Activity (with Example) Printable PDF Worksheet

  

3rd Grade 3-Digit Partial Sums Adding Activity Printable Addition PDF Worksheet

  

3rd Grade Graph Paper Adding Activity (3-Digit, Partial Sums) Printable Addition PDF Worksheet

  

3rd Grade Partial Sums Outline Example (3-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade Partial Sums Anchor Chart Tool (3-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade 4-Digit Partial Sums Addition Activity (with Example) Printable PDF Worksheet

  

3rd Grade 4-Digit Partial Sums Adding Activity Printable Addition PDF Worksheet

  

3rd Grade Graph Paper Addition Activity (4-Digit, Partial Sums) Printable PDF Worksheet

  

3rd Grade Partial Sums Outline Example (4-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade Partial Sums Anchor Chart Tool (4-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade 5-Digit Partial Sums Addition Activity (with Example) Printable PDF Worksheet

  

3rd Grade 5-Digit Partial Sums Adding Activity Printable Addition PDF Worksheet

  

3rd Grade Graph Paper Addition Activity (5-Digit, Partial Sums) Printable PDF Worksheet

  

3rd Grade Partial Sums Outline Example (5-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade Partial Sums Anchor Chart Tool (5-Digit Numbers) Printable Addition PDF Worksheet

  

3rd Grade Addition Mystery Picture: Summer Scenes 1 Printable PDF Worksheet

  

3rd Grade Addition Mystery Picture: Summer Scenes 2 Printable PDF Worksheet

  

3rd Grade Addition Number Search Puzzle Printable PDF Worksheet

  

3rd Grade Addition Balance Scales Printable PDF Worksheet

  

3rd Grade Mixed-Up Addition Table Printable PDF Worksheet

  

3rd Grade Caterpillar: Addition & Subtraction (Within 20) Printable PDF Worksheet

  

3rd Grade Fact Family Flashcards Add & Subtract Printable Addition PDF Worksheet   FREE 

  

3rd Grade Fact Family Triangles #1 Printable Addition PDF Worksheet   FREE 

  

3rd Grade Fact Family Triangles #2 Printable Addition PDF Worksheet

  

3rd Grade Fact Family Houses #1 Printable Addition PDF Worksheet   FREE 

  

3rd Grade Fact Family Houses #2 Printable Addition PDF Worksheet

  

3rd Grade Fact Family - Boxes 1 Printable Addition PDF Worksheet

  

3rd Grade Number Bonds to 10 Worksheet 1 Printable Addition PDF Worksheet

  

3rd Grade Number Bonds to 10 Worksheet 2 Printable Addition PDF Worksheet

  

3rd Grade Horizontal Number Bonds Printable Addition PDF Worksheet

  

3rd Grade Horizontal Number Bonds Worksheet 2 Printable Addition PDF Worksheet

  

3rd Grade Number Bonds with Equations Printable Addition PDF Worksheet

  

3rd Grade Horizontal Number Bonds with Equations Printable Addition PDF Worksheet

  

3rd Grade Number Bonds - Count the Pictures Printable Addition PDF Worksheet

  

3rd Grade Number Bonds - Draw the Dots Printable Addition PDF Worksheet

  

3rd Grade Number Bonds to 20 Worksheet 1 Printable Addition PDF Worksheet

  

3rd Grade Number Bonds to 20 Worksheet 2 Printable Addition PDF Worksheet

  

3rd Grade Snowmen Number Bonds Printable Addition PDF Worksheet

  

3rd Grade Adding Multiples of 10 and Comparing Printable Addition PDF Worksheet

  

3rd Grade Adding Multiples of 10 and Comparing Printable Addition PDF Worksheet

  

3rd Grade Word Problems: 2-Digit Addition (No Regrouping) Printable PDF Worksheet

  

3rd Grade Addition Boxes: 2-Digit (No Regrouping) Printable PDF Worksheet

  

3rd Grade Graph Paper Math: 2-Digit Addition (No Regrouping) Printable PDF Worksheet

  

3rd Grade Odd-Even Sums Printable Addition PDF Worksheet

  

3rd Grade Game: 2-Digit Addition Scoot Printable PDF Worksheet   FREE 

  

3rd Grade 2-Digit Plus 1-Digit with Regrouping Printable Addition PDF Worksheet

  

3rd Grade 2-Digit Addition Problems (Regrouping) Printable PDF Worksheet

  

3rd Grade 2-Digit Addition Worksheet #2 Printable PDF Worksheet

  

3rd Grade Word Problems: 2-Digit Addition (Regrouping) Printable PDF Worksheet

  

3rd Grade Shape Addition (2-Digit) Printable PDF Worksheet

  

3rd Grade Find the Mistakes Printable Addition PDF Worksheet

  

3rd Grade Graph Paper Math: 2-Digit Addends (Regrouping) Printable Addition PDF Worksheet

  

3rd Grade 2-Digit Addition with Place Value Blocks Printable PDF Worksheet

  

3rd Grade Addition Boxes: 2-Digit (Regrouping) Printable PDF Worksheet

  

3rd Grade Odd-Even Sums (2 Digits) Printable Addition PDF Worksheet

  

3rd Grade Cut-and-Glue Puzzle: Rocket Ship Printable Addition PDF Worksheet

  

3rd Grade Complete the Pass (Football Theme) Printable Addition PDF Worksheet

  

3rd Grade Addition Practice: Circles Printable PDF Worksheet

  

3rd Grade Variety Worksheet: 2-Digit Addition Printable PDF Worksheet

  

3rd Grade Number Pyramids (Sums to 100) Printable Addition PDF Worksheet

  

3rd Grade 3-Row Number Pyramids Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids (3 Rows) Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids (3 Rows, Top Number Given) Printable Addition PDF Worksheet

  

3rd Grade 4-Row Number Pyramids Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 4 Rows, Corners Given Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids (4 Rows, Top Number Given) Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids (4 Rows, Top Number Unknown) Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids (5 Rows, Top Number Unknown) Printable Addition PDF Worksheet

  

3rd Grade Magic Digits Game (2-Digit Addition) Printable PDF Worksheet

  

3rd Grade Balance Scales Printable Addition PDF Worksheet

  

3rd Grade Missing Addends Activity Printable Addition PDF Worksheet

  

3rd Grade End Zone Addition Printable PDF Worksheet

  

3rd Grade Addition with 3 Addends Printable PDF Worksheet   FREE 

  

3rd Grade Addition with 4 Addends Printable PDF Worksheet   FREE 

  

3rd Grade Find the Mistakes (3 Addends) Printable Addition PDF Worksheet

  

3rd Grade 3-Digit Addition with Regrouping Printable PDF Worksheet

  

3rd Grade 3-Digit Addition Worksheet Printable PDF Worksheet

  

3rd Grade Variety Worksheet: 3-Digit Addition Printable PDF Worksheet

  

3rd Grade Math Riddle: Amazing Talking Dog Printable Addition PDF Worksheet

  

3rd Grade Color and Add: Giraffe (3-Digits) Printable Addition PDF Worksheet

  

3rd Grade Shape Addition (3-Digit) Printable PDF Worksheet

  

3rd Grade Game: 3-Digit Addition Scoot Printable PDF Worksheet

  

3rd Grade Addition Practice: Task Cards Printable PDF Worksheet

  

3rd Grade Number Pyramids: Top Number Given Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids (3-Digit, 3 Rows) Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 3-Digit Numbers Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 3-Digit Numbers, 4 Rows Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 4 Rows, Top Number Given Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 4 Rows, Top Number Unknown Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 5 Rows Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 5 Rows, Top Number Given Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 5 Rows, Top Number Unknown Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 8 Rows Printable Addition PDF Worksheet

  

3rd Grade Number Pyramids: 8 Rows, 4-Digit Sums Printable Addition PDF Worksheet

  

3rd Grade Find the Mistakes Printable Addition PDF Worksheet

  

3rd Grade Even and Odd Sums Printable Addition PDF Worksheet

  

3rd Grade More 3-Digit Addition Printable PDF Worksheet

  

3rd Grade More 3-Digit Addition Practice Printable PDF Worksheet

  

3rd Grade Addition Bingo: 3-Digit Addends Printable PDF Worksheet

  

3rd Grade Graph Paper Math: 3-Digit Addends Printable Addition PDF Worksheet

  

3rd Grade Secret Code Math: 3-Digit Addition Printable PDF Worksheet

  

3rd Grade Addition Circles Activity Printable PDF Worksheet

  

3rd Grade Underwater Animals Addition Picture (3-Digit Addends) Printable PDF Worksheet

  

3rd Grade Monster Math Addition: 3-Digits Printable PDF Worksheet   FREE 

  

3rd Grade 3-Digit Addition with Place Value Blocks Printable PDF Worksheet

  

3rd Grade Magic Digits Game (3-Digit Addition) Printable PDF Worksheet

  

3rd Grade Dancing Pig Addition Printable PDF Worksheet

  

3rd Grade Word Problems: 3-Digit Addition Printable PDF Worksheet

  

3rd Grade More Word Problems: 3-Digit Addition Printable PDF Worksheet

  

3rd Grade 3-Digit + 2 Digits - Snowman Picture Puzzle Printable Addition PDF Worksheet

  

3rd Grade Addition Boxes: 3-Digit Printable PDF Worksheet

  

3rd Grade Addition: 3-Digits + 2-Digits Printable PDF Worksheet

  

3rd Grade Addition Review Worksheet Printable PDF Worksheet

  

3rd Grade Addition with 3 Addends Printable PDF Worksheet

  

3rd Grade Math Addition Riddle: Captain's Choice Printable PDF Worksheet

  

3rd Grade Find the Mistakes (3 Addends) Printable Addition PDF Worksheet   FREE 

  

3rd Grade Addition with 3 and 4 Addends Printable PDF Worksheet

  

3rd Grade Grocery Math Activity Printable Addition PDF Worksheet

  

3rd Grade Addition Crossword (3 Addends) Printable PDF Worksheet

  

3rd Grade Multiple Addends: Word Problems #1 Printable Addition PDF Worksheet

  

3rd Grade Multiple Addends: Word Problems #2 Printable Addition PDF Worksheet

  

3rd Grade Secret Code Math: 3 Addends, 3 Digits Printable Addition PDF Worksheet

  

3rd Grade Math Riddle: Bee School (Add/Subtract; 3 Digits) Printable Addition PDF Worksheet

  

3rd Grade Addition Bar Models (Tape Diagrams) Printable PDF Worksheet

  

3rd Grade Addition Bar Models With Work Space Printable PDF Worksheet

  

3rd Grade 4-Digit Addition Practice Printable PDF Worksheet   FREE 

  

3rd Grade Variety Worksheet: 4-Digit Addition Printable PDF Worksheet

  

3rd Grade Graph Paper Math: 4-Digit Addends Printable Addition PDF Worksheet

  

3rd Grade Word Problems: 4-Digit Addition Printable PDF Worksheet

  

3rd Grade 4-Digit Addition Crossword Printable PDF Worksheet

  

3rd Grade Shape Addition (4-Digit) Printable PDF Worksheet

  

3rd Grade Addition Task Cards Printable PDF Worksheet

  

3rd Grade Secret Code Math: 4-Digit Addition Printable PDF Worksheet

  

3rd Grade Find the Mistakes Printable Addition PDF Worksheet

  

3rd Grade Cut-and-Glue Addition Puzzle: Parrot Printable PDF Worksheet

  

3rd Grade Cut-and-Glue Addition Puzzle: Rocket Printable PDF Worksheet

  

3rd Grade Cut-and-Glue Addition Puzzle: Dinosaur Printable PDF Worksheet

  

3rd Grade Addition Word Problems: 4-Digit Addends Printable PDF Worksheet

  

3rd Grade Addition Boxes: 4-Digit Printable PDF Worksheet

  

3rd Grade Even & Odd Sums (4 Digits) Printable Addition PDF Worksheet

  

3rd Grade Addition Circles: Practice Adding Printable PDF Worksheet

  

3rd Grade Expanded Form (Thousands) Printable Addition PDF Worksheet

  

3rd Grade Fun Math Addition Riddle: Lazy Bones Printable PDF Worksheet

  

3rd Grade Column Addition: 4 Digits, 3 Addends Printable PDF Worksheet   FREE 

  

3rd Grade Column Addition: 4 Digits, 4 Addends Printable PDF Worksheet   FREE 

  

3rd Grade Find the Mistakes (Multiple Addends) Printable Addition PDF Worksheet

  

3rd Grade Math Riddle: Graveyard Fences Printable Addition PDF Worksheet

  

3rd Grade Math Riddle: Duck Lunch (Add/Subtract; 4 Digits) Printable Addition PDF Worksheet

  

3rd Grade Addition-Subtraction Bar Models (Tape Diagrams) Printable PDF Worksheet

  

3rd Grade Adding and Subtracting Bar Models with Work Space Printable Addition PDF Worksheet

  

3rd Grade Single-Digit Numbers, 3 Addends Printable Addition PDF Worksheet   FREE 

  

3rd Grade Single-Digit Numbers, 4 Addends Printable Addition PDF Worksheet

  

3rd Grade Single-Digit Numbers, 5 Addends Printable Addition PDF Worksheet

  

3rd Grade Secret Code Math: Up to 4 Addends, 4 Digits Printable Addition PDF Worksheet

  

3rd Grade Addition Basic Facts Drill (0-6) Printable PDF Worksheet

  

3rd Grade Addition Basic Facts Drill (0-7) Printable PDF Worksheet

  

3rd Grade Addition Basic Facts Drill (0-8) Printable PDF Worksheet

  

3rd Grade Addition Basic Facts Drill (0-9) Printable PDF Worksheet

  

3rd Grade Flower Sum Game Printable Addition PDF Worksheet

  

3rd Grade Penguin Sum Game Printable Addition PDF Worksheet

  

3rd Grade Sunshine Sum Game Printable Addition PDF Worksheet

  

3rd Grade Easter Addition Sum Game Printable PDF Worksheet

  

3rd Grade Associative & Commutative Properties Printable Addition PDF Worksheet

  

3rd Grade Properties of Addition Printable PDF Worksheet

  

3rd Grade Assoc., Identity, & Comm. Props. Printable Addition PDF Worksheet

  

3rd Grade Discuss & Write: Addition Properties Printable PDF Worksheet   FREE 

  

3rd Grade Assoc. & Comm. Properties - Intermediate Printable Addition PDF Worksheet

  

3rd Grade In-Out Boxes #1 (Basic) Printable Addition PDF Worksheet   FREE 

  

3rd Grade In-Out Boxes #2 (Basic) Printable Addition PDF Worksheet   FREE 

  

3rd Grade In & Out Boxes (Intermediate) Printable Addition PDF Worksheet

  

3rd Grade In & Out Boxes #2  (Intermediate) Printable Addition PDF Worksheet

  

3rd Grade In & Out Boxes #3 (Intermediate) Printable Addition PDF Worksheet

  

3rd Grade Input-Output Tables (Advanced) Printable Addition PDF Worksheet

  

3rd Grade Decimal Input-Output (Advanced) Printable Addition PDF Worksheet

  

3rd Grade Multiplication Practice as Repeated Addition Printable PDF Worksheet

  

3rd Grade Repeated Addition Boxes Printable PDF Worksheet

  

3rd Grade Multiplication Groups As Repeated Addition Printable PDF Worksheet

  

3rd Grade Using Arrays: Repeated Addition & Multiplication Printable PDF Worksheet

  

3rd Grade Arrays as Repeated Addition Printable PDF Worksheet

  

3rd Grade Bar Models: Repeated Addition and Multiplication Printable PDF Worksheet   FREE 

  

3rd Grade Bar Model Worksheet #2: Repeated Addition and Multiplication Printable PDF Worksheet

  

3rd Grade Find the Mistakes (Subtraction) Printable Addition PDF Worksheet

  

3rd Grade Addition Bakery (Money) Printable PDF Worksheet   FREE 

  

3rd Grade Math Riddle: Skunk Joke Printable Addition PDF Worksheet

  

3rd Grade Shape Addition (Money) Printable PDF Worksheet

  

3rd Grade Variety Worksheet: Adding Money Printable Addition PDF Worksheet

  

3rd Grade Adding Money - Toy Shop Printable Addition PDF Worksheet

  

3rd Grade Secret Santa Addition (Money) Printable PDF Worksheet

  

3rd Grade Snowmen Addition Picture (Money) Printable PDF Worksheet

  

3rd Grade Addition Word Problems (Adding Money) Printable PDF Worksheet

  

3rd Grade Find the Mistakes Printable Addition PDF Worksheet

  

3rd Grade Addition Boxes: Money Printable PDF Worksheet

  

3rd Grade Addition Picture Puzzle: Hot Air Balloon Printable PDF Worksheet

  

3rd Grade Adding Activity: Addition Circles Printable PDF Worksheet

  

3rd Grade Task Cards Printable Addition PDF Worksheet

  

3rd Grade Magic Digits Game Printable Addition PDF Worksheet

  

3rd Grade Money Operations with Bar Models Printable Addition PDF Worksheet

  

3rd Grade Adding and Subtracting with Bar Models Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions w/ Like Denominators (Horizontal) Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions: Tape Diagrams Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions with Sums of 1: Tape Diagrams Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions: Making Tape Diagrams Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions w/ Like Denominators (Vertical) Printable Addition PDF Worksheet   FREE 

  

3rd Grade Adding Fractions; Like Denominators (Vertical) Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions (Horizontal and Vertical) Printable Addition PDF Worksheet

  

3rd Grade Variety Worksheet: Fraction Addition (Like Denominators) Printable PDF Worksheet

  

3rd Grade Task Cards: Adding Fractions With Like Denominators Printable Addition PDF Worksheet

  

3rd Grade Adding and Subtracting Fractions w/ Like Denominators (Horizontal) Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions (w/ Answers > 1) Printable Addition PDF Worksheet

  

3rd Grade Adding Fractions (Horizontal) Printable Addition PDF Worksheet

  

3rd Grade Fraction Addition Number Bonds Printable PDF Worksheet

  

3rd Grade Ice Cream Math Riddle (Adding Fractions / Like Denominators) Printable Addition PDF Worksheet

  

3rd Grade Variety Worksheet: Fraction Addition (Unlike Denominators) Printable PDF Worksheet

  

3rd Grade Adding Mixed Numbers with Like Denominators (Vertical) Printable Addition PDF Worksheet   FREE 

  

3rd Grade Adding Mixed Numbers with Like Denominators 2 (Vertical) Printable Addition PDF Worksheet

  

3rd Grade Adding and Subtracting Mixed Numbers with Like Denominators (Horizontal) Printable Addition PDF Worksheet

  

3rd Grade Adding Mixed Numbers with Like Denominators (Horizontal) Printable Addition PDF Worksheet

  

3rd Grade Order of Operations (Basic: No Parentheses) Printable Addition PDF Worksheet

  

3rd Grade Math Riddle: Cat's Favorite Color Printable Addition PDF Worksheet

  

3rd Grade Task Cards: Order of Operations (Basic: No Parentheses) Printable Addition PDF Worksheet

  

3rd Grade Order of Operations with Example (Basic: No Parentheses) Printable Addition PDF Worksheet

  

3rd Grade Secret Code Math: Order of Operations (Basic: No Parentheses) Printable Addition PDF Worksheet   FREE 

  

3rd Grade Puzzle: Order of Ops Maze Printable Addition PDF Worksheet

  

3rd Grade Basic Addition Frames and Arrows Printable PDF Worksheet   FREE 

  

3rd Grade Frames and Arrows Worksheet (Basic Addition) Printable PDF Worksheet

  

3rd Grade Addition (2-Digit Numbers) Printable PDF Worksheet   FREE 

  

3rd Grade Addition Task Cards (2-Digits) Printable PDF Worksheet

  

3rd Grade Addition (3-Digit Numbers) Printable PDF Worksheet

  

3rd Grade Addition Task Cards (3-Digits) Printable PDF Worksheet

  

3rd Grade Addition (4-Digit Numbers) Printable PDF Worksheet

  

3rd Grade Addition Task Cards (4-Digits) Printable PDF Worksheet

Looking for more addition practice? Explore all of our basic addition worksheets for beginners or browse multi-digit addition worksheets for more advanced adding skills that are taught in higher grade levels.