Get your ducks in a row and strengthen number sense in this adorable math worksheet!

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

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

Round 'Em Up! Kids learn how to round to the nearest ten and the nearest hundred on this third grade math worksheet.