Children complete an addition chart, then fill in missing addends and sums in this useful practice worksheet.

Count up the shapes to solve each multiplication equation! This worksheet is a great way to help a visual learner nail down the concept of multiplication.

Put your addition skills to the test with these puzzle boxes for second and third graders!

Packed with addition problems requiring regrouping, this worksheet is a perfect way to practice addition with carrying.

Bolster your third grader's addition skills with at-home practice in three-digit addition.

Help the rafflers add up the donations by completing word problems using three-digit addition.

Did you know that multiplying a number by two is the same thing as adding that number to itself? Use this trick in this lovely math worksheet.

Practice place value, rounding and addition, all in one worksheet! Your child will learn to add up estimated sums quickly in his head.

Children solve a series of problems to trace a path from start to finish in this fun math puzzle worksheet.

Give students practice adding three-digit numbers within 1,000! 

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

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