Multi-Digit Addition Worksheets – 6, 7 & 8 Digit Numbers

Help students improve their accuracy and confidence with large numbers using this set of 50 printable addition worksheets.

Each worksheet includes 21 addition problems:

• 7 problems with 6-digit numbers

• 7 problems with 7-digit numbers

• 7 problems with 8-digit numbers

With 50 worksheets, students get plenty of practice adding large numbers and working with place value.

What’s Included

• 50 printable addition worksheets

• 50 matching answer key pages

• 1,200 multi-digit addition problems in total

• 6-digit, 7-digit, and 8-digit addition practice

• Black-and-white printable pages

Skills Students Will Practice

• Adding large numbers

• Aligning digits by place value

• Regrouping when needed

• Adding across multiple place values

• Checking answers

• Improving calculation speed and accuracy

Perfect For

• Grades 4–6, depending on students’ skill levels

• Daily math practice

• Morning work and bell ringers

• Independent work

• Math centers

• Homework

• Math intervention and review

• Assessment preparation

• Early finishers

Answer Keys Included

Every worksheet has a matching answer key. Students can use the answer keys to check their work, while teachers and parents can review completed assignments quickly.

Print the pages you need and give students extra practice adding 6-digit, 7-digit, and 8-digit numbers.