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!

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

Kids solve addition problems with three-digit addends to move from bubble to bubble on this second grade math worksheet.

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