Kids practice estimation by guessing the number of stars on this first grade math worksheet. Then they check their guess by counting the stars.

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.

This first grade math worksheet helps your child practice estimation, an important skill he will use as he progresses in math, and throughout his life.

This math worksheet gives your child lots of practice with front-end estimation, addition, and subtraction.

Kids visually estimate the number of fish swimming on this worksheet. After making their guess, they check it by counting each fish.

Rounding can take some practice. Give your student the opportunity to master the art of rounding. Use the chart to help him figure out the answers.

Give your little one a hand and help her hone her rounding skills. She will practice her rounding skills by answering the various questions.

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.

Does your child need practice with his math skills? This printable first grade worksheet will give him practice rounding whole numbers to the nearest ten.

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

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.

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.

Develop your rounding skills with this helpful worksheet!

Kids practice two-digit subtraction and rounding in this challenging 2nd grade math worksheet.

With lessons in place value and rounding, this addition worksheet offers young 2nd grade math whizzes a worthy challenge.

Your child will practice two-digit addition and rounding to the nearest hundred in this challenging 2nd grade math worksheet.

Combining place value, rounding, and advanced two-digit addition, this 2nd grade math worksheet offers young mathematicians a worthy challenge.

This challenging, multi-step 2nd grade math worksheet offers practice in two-digit addition with carrying, place value, and rounding.

Offering a lesson in place value and rounding, this addition worksheet is perfect for children tired of the usual addition worksheets.

Young addition whizzes get a run for their money in this 2nd grade math worksheet that combines two-digit addition, place value, and rounding!

Your child can dance his way to arithmetic success with this cheerful 2nd grade addition worksheet that includes lessons in analyzing place value and rounding.

Teach your child how to round to the nearest hundred with this 2nd grade math worksheet that includes two-digit addition and rounding.

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.

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!

Kids visually estimate the number of oranges on a set of trees, then count the oranges one by one and see how close they were. Then they color the page.

Your child will practice two-digit addition and place value and learn how to round to the nearest hundred in this 2nd grade math worksheet.

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

Get ready to round with this helpful second- and third-grade math worksheet! 

Your student will have to figure out which way to go in order to find the answer. DonÃt worry, it's multiple choice. Circle the correct answer.