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.

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!

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.

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

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.

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

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

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

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

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

Practice the properties of addition with this colorful worksheet for third graders!

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

Bolster your knowledge of the associative property of addition in this charming worksheet!

Color your way to commutative confidence with this creative worksheet!

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

Test your addition skills with this helpful hundred chart worksheet!