3 Digit + 3 Digit Addition Worksheet Packet

Build stronger addition skills one problem at a time!

The Great Kid Works Grade 3: 3-Digit + 3-Digit Addition Worksheet Packet gives students focused practice adding three-digit numbers while strengthening place-value understanding, accuracy, fluency, and confidence.

This printable packet includes 10 full-page addition worksheets, with 25 problems per page for a total of 250 addition problems. Students begin with easier hundreds-based addition practice and progress to mixed three-digit addition problems with and without regrouping.

The clean, spacious worksheet design keeps the focus on math and gives students plenty of room to solve each problem independently.

WHAT'S INCLUDED

• 10 printable Grade 3 math worksheets
• 25 addition problems per worksheet
• 250 addition problems total
• Three-digit + three-digit addition practice
• Practice with and without regrouping
• Hundreds, tens, and ones/place-value reinforcement
• Name, Grade, and Date spaces
• “Number Correct” section for easy progress tracking
• Common Core Standards & Skills page

SKILLS PRACTICED

Students will practice adding three-digit numbers, using place value to find sums, regrouping when necessary, improving computational accuracy and fluency, and building confidence through repeated independent practice.

Great For:

Morning work, math centers, independent practice, homework, small groups, intervention, tutoring, homeschool, skill review, extra practice, and assessment preparation.

The worksheets can be used individually as students develop their skills or together as a complete 10-page addition practice packet.

ADD • PRACTICE • BUILD CONFIDENCE

GROWING GREAT MINDS. BUILDING GOOD CHARACTER.