Students add three 2-digit (up to 99) numbers; questions in horizontal form. For a challenge, students should try to figure out the answers mentally without having to write down intermediary steps.
These worksheets are available to members only.
Join K5 to save time, skip ads and access more content. Learn More
Find all of our addition worksheets, from adding by counting objects to addition of multiple large numbers in columns.
What is K5?
K5 Learning offers free worksheets, flashcards and inexpensive workbooks for kids in kindergarten to grade 5. Become a member to access additional content and skip ads.
Our members helped us give away millions of worksheets last year.
We provide free educational materials to parents and teachers in over 100 countries. If you can, please consider purchasing a membership ($24/year) to support our efforts.
Members skip ads and access exclusive features.
This content is available to members only.
Join K5 to save time, skip ads and access more content. Learn More
