Challenge your third grade mathematicians with these addition and subtraction word problems. This exercise is designed to assess your students' math level at the beginning of third grade.

Practice adding with this third grade addition worksheet. Your child will hone his addition skills.

Sharpen your mental math skills with this second- and third-grade compensation worksheet! 

Kids solve addition problems with three-digit addends using regrouping on this third grade math worksheet.

Hop, skip, and jump using compensation in this second- and third-grade addition worksheet!

Add like mad with our thrilling addition worksheet! This three-minute math drill gets your child racing to complete all the addition equations on the page.

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

Children practice adding integers and decimals to the thousandths place in this practice worksheet.

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

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