On this third grade math worksheet, kids round to estimate the sum of two numbers, a useful strategy for checking the results of calculations.

Time for a numbers round-up! Rounding and estimation are important math concepts that will help boost your child's mental math skills.

This worksheet will challenge your third graders to round numbers and then them. Students will answer multiple choice questions by rounding up or rounding down numbers in the problems provided.

Children practice rounding to the nearest thousand in this rounding and place value worksheet.

Offering practice rounding to the nearest ten, hundred, and thousand, this worksheet is sure to help your child rocket to rounding mastery.

This rounding worksheet helps your students practice rounding three-digit numbers to the nearest hundreds, tens, and ones.

Kids practice rounding to the nearest ten, hundred, and to the place value underlined on this math worksheet.

If your child has mastered money math but needs to know how to round, hand her this quick introduction to rounding up and down to the nearest dollar.

On this third grade math worksheet, kids round to estimate the difference between two numbers, a useful strategy for checking the results of calculations.

Practice rounding to the tens and hundreds places with this essential rounding worksheet!

Round 'Em Up! Kids learn how to round to the nearest ten and the nearest hundred on this third grade 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!

From the tiniest ant to the biggest elephant, every animal has a mass!

Measure masses around the kitchen with this fun third-grade maze!

Get your ducks in a row and strengthen number sense in this adorable math worksheet!

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