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

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

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.

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.

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.

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!

Develop your rounding skills with this helpful worksheet!

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

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