Addition doesn't have to be puzzling—practice finding sums with these second- and third-grade puzzle boxes!

Children practice finding the sum of two three-digit whole numbers, with no regrouping, in this math worksheet.

Explore properties of operations while writing addition equations in this second-grade math worksheet!

Get more practice exploring properties of operations while writing addition equations in this second-grade math worksheet!

Try solving near-doubles facts with these nine problems!

Solve near-doubles facts with this appealing worksheet!

Learn how to use doubles facts to solve other addition problems!

Let’s chart a calculated course with this engaging second-grade addition activity!

Practice three-digit addition with regrouping in this set of 36 problems.

Take a big leap forward with your math skills as you practice addition in this cheerful, inviting worksheet!