Three Digit Addition Worksheet – 3rd Grade Math Practice + Answer Key

About This Product
Looking for simple, effective addition practice for third grade? The Three Digit Addition Worksheet is a ready-to-print math resource that students can complete on their own after a short introduction.
Learning objective: Students will practice addition and apply the skill independently by completing each task on the page.
Why it works: Students stay on task because the directions are short and the practice is the right size for one sitting. Teachers save time because the page is ready to print and easy to check.
What's included:
1 printable worksheet page
Clear, student-friendly directions
2 practice sections (Part A to Part B)
Answer key (1 page)
Cover page
How it's organized: The page opens with these directions: "Find each sum. Start with the ones column and regroup whenever the digits pass nine." The practice is split into 2 parts, so students can work through it in clear steps.
Grade level: Designed for third grade students. It also works well for second grade and fourth grade students who need extra practice or a fresh review.
How to use it: Assign it after a mini-lesson, use it in a small group, send it home as homework, keep it in your sub folder, or use it as a quick formative check.
Answer key: An answer key is included, so you can check work quickly or let students self-correct.
Teaching tips and variations:
Keep a few copies in your early finisher bin for independent review.
Project the page and solve one or two items as a class before students work on their own.
Send it home as homework so families can see what their child is learning in math.
Skills covered: Addition, Math
Standards: Supports Common Core 3. NBT.A.2.
File type: PDF, ready to print.
Number of pages: 3 (1 worksheet page, 1 answer key page, 1 cover page).
Have Fun Teaching creates classroom-tested resources for PreK through 6th grade. Follow our shop to find more math worksheets that pair well with this page. Have Fun Teaching on Teach Simple





