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.

Find the height difference between a sheep and a snail, and get some measurement practice in too. This worksheet focuses on subtraction and measurement.

Addition and subtraction practice can get a little repetitive, so mix it up with this funny under the sea worksheet.

Kids use details from the word problems on this third grade math worksheet to construct and solve subtraction problems with numbers up to three digits long.