Grade 3 Addition Worksheets
Free printable addition practice for Grade 3 students. Generate problems, solve them on screen or paper, and download as PDF.
What Your Child Will Learn
Grade 3 addition focuses on multi-digit operations with numbers up to 1,000 and beyond. Students refine regrouping across multiple place values and develop efficient written methods (the standard algorithm). They also strengthen mental math by adding hundreds, then adjusting.
Word problems become more complex, requiring students to choose between addition and subtraction and sometimes use both in multi-step problems. Students also begin adding amounts of money (dollars and cents) and working with addition in measurement contexts like perimeter. Fluency with basic addition facts is expected, freeing up working memory for these larger computations.
Skills Covered
- Adding numbers up to 1,000 with regrouping
- Using the standard addition algorithm
- Mental math: adding hundreds and adjusting
- Solving multi-step word problems with addition
- Adding money amounts (dollars and cents)
- Finding perimeter using addition
Curriculum Aligned: Aligned with Strand B (Number): adding whole numbers to 1,000 using a variety of strategies, including the standard algorithm.
Parent Tip: Connect addition to real life — let your child help add up grocery totals, calculate distances on a map, or tally scores during a game.
What your child will practice
- Addition and Subtraction FactsRecall addition facts to 20 and related subtraction facts, and recall multiplication facts for 2, 5, and 10.
- Multi-digit AdditionAdd whole numbers with up to three digits, using a variety of strategies.
Free Practice Worksheets
Print, solve on paper, then upload a photo for instant AI grading and feedback.
Build confidence with approachable problems
Solve each problem. Take your time.
- 1.Add: 123 + 45
- 2.Add: 256 + 78
- 3.Add: 305 + 192
- 4.Add: 481 + 325
- 5.Add: 517 + 298
- 6.Add: 670 + 330
Full range of grade expectations
Solve each problem. Show your work.
- 1.Sarah baked 145 cookies on Monday and 237 cookies on Tuesday. How many cookies did Sarah bake in total?
- 2.What is the sum of 345 and 567?
- 3.A farmer planted 120 apple trees and 155 pear trees. How many trees did the farmer plant altogether?
- 4.Compare the two sums: 289 + 456 and 312 + 430. Which sum is greater?
- 5.Calculate: 500 + 300 + 150
- 6.Imagine a number line. If you start at 75 and add 40, what number do you land on?
Want Unlimited Addition Practice?
Sign up for free to unlock AI-generated worksheets, instant grading, and a personalized study plan tailored to your child's level.
Create a Free AccountFrequently Asked Questions
How many addition problems should my child practice each day?
10-15 problems per day is ideal. Short, consistent daily sessions build addition fluency faster than long, infrequent practice. Focus on accuracy first, then speed.
What addition strategies should my child learn?
Key strategies include counting on, making ten, doubles and near-doubles, and breaking numbers apart (decomposition). Start with manipulatives, then move to mental math.
When should my child have addition facts memorized?
Most curricula expect basic addition fact fluency (sums to 18) by the end of Grade 2. Grade 3-4 students should handle multi-digit addition with regrouping confidently.