Adding large numbers becomes easy when you know how to round. Add two groups of numbers, round them to the nearest 10, then add again.

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.

Round two-digit numbers to the nearest 10 with this essential 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!

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

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

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.

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

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

Hone your rounding skills with this helpful worksheet!

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.

Learn your way around rounding with this essential worksheet!

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

Ones, tens, and hundreds! Oh My! With this worksheet, your student will find the place value of a digit in a number.

Looking for a worksheet to help your kid with number rounding skills? This printable will help him with third grade math skills.

Master rounding to the tens place with this engaging worksheet!

Your student will practice her rounding skills with this multiple choice worksheet. Once she's done, she'll be an expert at rounding up and down.

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