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

Math whizzes can learn to estimate sums quickly using front-end estimation! Round to the highest place value and then add or subtract the rounded numbers.

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

Use this glossary with the EL Support Lesson Plan: The Language of Estimation.

Use these vocabulary cards with the EL Support Lesson Plan: The Language of Estimation.

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.

Is a giraffe more likely to be 15 feet tall or 25 inches tall? You probably don't need to get out your ruler to get to the correct answer. Assess student understanding of inches, centimeters, feet, and meters with this estimation check-in.

On the road to advanced math, make a stop at estimation station! This worksheet will help your child practice making "guesstimations" about length.

Size up these barn animals with your little farmer. Help him learn to eyeball things by using his knowledge of how long an inch is.

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

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.

Get your lasso ready, it's time to round up the hundreds herd! Your rounding rancher will practice estimating numbers to the nearest hundred.

Saddle up, it's time to round up this herd of sheep! Your math cowboy will practice rounding to the nearest ten with this worksheet.

Use this glossary with the EL Support Lesson: Place Value and Rounding.

Hone your rounding skills with this colorful worksheet!

Use these vocabulary cards with the EL Support Lesson: Place Value and Rounding.

Help your child get comfortable with rounding numbers to the nearest ten with this sea-themed worksheet.

Make learning metric units easy with this colorful estimation worksheet!

Master measurement with a fun estimation activity! Help your child practice "eyeballing" these measurements in inches and centimeters.

Rounding in centimeters sounds tricky, but it's simple, really. This ruler worksheet is sure to help your child wrap her head around this math concept.

Chances are your child knows how to round, but how about rounding in inches? Help him tackle this concept with an exercise in measuring to the nearest inch.

Should you round that number up or round it down? Help your seafarer master the art of rounding with this fun fish color by number.

How quickly can your math master round and add up these sums? Help him build a valuable math skill with this estimation worksheet.

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 measurement with this colorful worksheet. Students will first make an estimation, and then measure with a ruler.

Estimation is an important part of math and science. Practice estimating length by using your best guess!

Rounding numbers can be tricky. Teach your third graders the rhyme five or more up the score, four or less let it rest.

Adding and subtracting large numbers can sometimes be difficult. Estimating is an easy way to figure out if your answer is close, or if you need to try again.