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

Kids use details from the word problems on this third grade math worksheet to construct and solve addition problems with two or three two-digit addends.

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

Addition will probably be the most basic and most constant use of math for any kid or adult. This worksheet will give your child lots of practice with it.

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

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

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 adding two-digit numbers with this compensation worksheet for second and third graders!

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.

Practice adding multi-digit numbers in this second- and third-grade worksheet!

Use Election Night to teach your child about politics and government, and have them add up the electoral votes each presidential candidate earns throughout the night.

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

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

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

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

Test your talent in two-digit addition with this colorful math worksheet!

Add a fun twist to math practice with these second- and third-grade addition puzzles!

Make two-digit addition easier with this inviting worksheet!

Master two-digit addition with these hundred chart problems!

Use a visual model to solve these two-digit addition problems!

Test your addition skills with this helpful hundred chart worksheet!

Test your skills with addition in this essential compensation worksheet!

Create models of addition problems with this compensation worksheet for second and third graders!

Jump forward and backward on a number line to solve addition problems in this engaging worksheet!

With this worksheet students will practice using the number line strategy to add three-digit numbers.

Once your child masters addition with carrying, there's practically no number too big for her to add!

Adding up big numbers can be tricky. Teach your budding mathematician a helpful trick to keep the numbers in line with carrying!

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.

Is your math whiz up to the challenge? She'll have to use logic and reasoning skills to solve this tricky addition puzzle!