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.

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.

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