Little math learners can have a blast solving these Valentine's Day addition problems! Build basic math skills with this practice sheet.

Treat your little sweetheart to a fun math activity this Valentine's Day. He'll get to do some coloring as he reviews math facts.

Practice adding 3 to numbers within 10 with this first-grade addition worksheet!

If your child is confident in their addition skills, challenge them to tackle addition with three numbers.

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

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

Try this bright worksheet to give your first grader some at-home practice with adding three numbers!

Kids look for keywords to determine how to solve each problem with this three-step addition worksheet.

Use the worksheet to help students visualize addition number sentences with three addends. Kids build 10 cube trains using three different color cubes, color their trains, and then write out the equations.

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

Get in spirit of April Fools' Day with this set of wacky word problems! Follow Ryan on his very odd day, where things don't seem to add up.

If your child is looking for a number challenge, we've got the worksheet for her. She may be a whiz at adding two numbers, but can she add three numbers?

Track down tens to solve addition problems with three addends!

Review three-digit addition and subtraction by solving these dino-riffic word problems.

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

Get even more practice performing three-digit addition using open number lines with this second-grade math worksheet!

Add three numbers by making a 10 in this first-grade worksheet!

Happy Valentine's Day! Your first grader will color all the candies in this heart-shaped box while solving some sweet math problems.

This coloring page dot-to-dot uses skip counting as an unexpected way to tie in multiplication learning and reviewing multiples of three!

Kids solve addition problems with three-digit addends to move from bubble to bubble on this second grade math worksheet.

Teach your students to solve word problems with three addends. Plenty of space is provided for students to show their thinking!

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

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

Can your first grader practice adding three numbers together to help these working people do their jobs?

Use these cards to help students see the difference between adding three-digit numbers using the standard algorithm and expanded notation.

Prepare your first grader for Valentine's Day with these sweet math problems to help her review her addition math facts.

Use this glossary with the EL Support Lesson Plan: Comparing Strategies for Three-Digit Addition.

Get your child to work his mental math skills this Valentine's Day with this chocolate-filled worksheet.

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

Use these strategy cards to help students develop their compare and contrast skills, along with deepening their understanding of three-digit addition.