Skill 7F
Problem Solving: Subtraction: Estimation

Here, we test your student's ability to estimate to the nearest hundred and then check the problem by subtracting and determining if the answer appears reasonable.

Read the word problem and use rounding to estimate.
Then subtract to see if your estimate is reasonable.

On Monday the public library received 425 pieces of mail.
On Tuesday the library received 190 pieces of mail.
To the nearest hundred, estimate how many more pieces of mail the library received on Monday than on Tuesday.

The library received about ________ more pieces of mail on Monday.

Subtract to see if your estimate is reasonable.