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

Children will put their three-digit addition skills to the test as they solve 23 practice problems in this math worksheet.

Can your little math whiz add up sums quickly in his head? Teach him to estimate before adding, a great skill to put to use in everyday life!

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

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.

Learners will solve 20 two- and three-digit addition problems in this versatile practice worksheet.

Use this resource to assess students’ abilities to solve a variety of word problems.

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

Use this winter-themed resource with your students to practice multi-step word problems with mixed operations.

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

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.

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

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

Learners solve 12 three- and four-digit problems as they work on their multidigit addition skills.

Use your addition and decoding skills to solve eight problems in this fun math puzzle!

Searching for a worksheet that practices addition regrouping? This printable is perfect for practicing addition skills like carrying the tens column.

This simple worksheet is packed with two-digit and three-digit subtraction problems.

What do sea monsters eat? Solve the math problems in this worksheet to reveal the answer! This math worksheets gets kids to build math and spelling skills.

This resource gives your learners practice solving multi-step word problems with mixed operations. They will use addition, subtraction, or both operations.

Estimate the sum in each of these math problems. Challenge your child to round to the nearest hundred first, then add the two rounded numbers.

Use this Arctic-themed resource with your students to practice multi-step word problems with mixed operations.

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

Math learners solve sports-themed addition and subtraction problems in this practice worksheet.

Improve those skills! Practice three-digit addition with these twelve problems.

How many shells did Sally sell by the seashore? Get your student in gear for math with this addition worksheet.

Children learn to identify and convert Roman numerals in this introductory worksheet.

What is a math teacher's favorite dessert? Pi! Find more funny riddles by doing this worksheet--a perfect combination of math practice and brain teasers.

Help your students apply strategies when solving addition problems. This worksheet provides practice for using number lines to solve addition problems with three-digit numbers.

Practice two-and three-digit subtraction in this set of school-themed word problems!

Why was 6 afraid of 7? 7 8 9 (seven ate nine)! Find more funny riddles to solve with this awesome addition worksheet.