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

Test your addition skills with this helpful hundred chart worksheet!

Learners will determine the rule for each sequence to find the missing numbers in this engaging math puzzle.

Use your addition expertise to find the missing digits in each equation with this second- and third-grade worksheet!

This math worksheet tests your child's addition and riddle-solving skills. Find out the answer to the riddle, "Which month has 28 days?"

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

What does carrying have to do with math? Help your second grader find out with this worksheet full of big number addition and carrying hints.

Why is 2+2=5 like your left foot? ...Itâs not right! Find more riddles with this awesome worksheetâa perfect combination of math practice and brain teasers.

Make two-digit addition easier with this inviting worksheet!

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

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

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

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

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

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.

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.

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

Who will be the winner in Darting Decimals? Your child decides as he adds up the decimal scores and determines which team has scored the most points.

This underwater-themed worksheet is a playful way for learners to practice solving multi-step word problems.

This underwater-themed worksheet is a playful way for learners to practice solving multi-step word problems.

This underwater-themed worksheet is a playful way for learners to practice solving multi-step word problems.

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

Practice addition with your second grader, a math worksheet, and a deck of playing cards.

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

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