Tackle triple-digit addition and subtraction with this practice worksheet.

Children stretch their regrouping skills as they solve three-digit subtraction word problems.

Review three-digit addition and subtraction by solving these dino-riffic word problems.

Find the hidden rule in these puzzling math tables! Compare your "in" number to the corresponding "out" number to find the pattern in each table.

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.