Three-Digit Addition - Worksheet 1 - 2nd Grade
EasyAdd three-digit numbers with and without regrouping (Easy)
15 problems · 15-20 minutes · Skills: addition, place value
About This Worksheet
This easy-level worksheet contains 15 problems designed for 2nd Grade students practicing three-digit addition. Easy worksheets use simpler numbers and straightforward problem types to build confidence and reinforce foundational skills.
Three-digit addition extends regrouping to two levels and solidifies the standard algorithm. Students who master it have the procedural foundation for adding any whole numbers in later grades.
- Add three-digit numbers with and without regrouping
- Regroup ones into tens and tens into hundreds
- Solve multi-step addition problems
- Estimate sums by rounding three-digit numbers to the nearest hundred
- Check three-digit addition by reversing the order of the addends
How to Solve: Worked Example
- Read the problem carefully.
- Identify what is being asked.
- Use what you know to find the answer.
- Check your work.
Answer Key
Frequently Asked Questions
How do I download this three-digit addition - worksheet 1 worksheet?
Click the "Download PDF / Print" button at the top of the worksheet. You can save it as a PDF or print it directly. The answer key will be on a separate page.
How do I find worksheets at different difficulty levels?
Each subtopic has 10 worksheets: Worksheets 1-3 are Easy, 4-7 are Medium, and 8-10 are Hard. Start with Easy worksheets to build confidence, then progress to harder ones.
What skills does this addition worksheet cover?
This worksheet focuses on addition, place value. It is designed for 2nd Grade students and provides structured practice through varied problem types with a worked example to guide students before they begin.
Can I use this worksheet in my classroom?
Yes. All worksheets on K12Worksheets are free for classroom use. You can print copies for your entire class. With 10 worksheets per subtopic at three difficulty levels, you have plenty of options for differentiated instruction and individualized practice.
How many problems are on this worksheet?
This worksheet contains 15 problems. It typically takes 15-20 minutes to complete. An answer key with all solutions is included so parents and teachers can check work quickly.