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.

Show your understanding of place value and rounding with this comprehensive number sense assessment worksheet!

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

Reach the peak of number know-how with this worksheet all about comparing numbers!

Build number chains in this worksheet for third and fourth graders!

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