The supermarket had 538 boxes of cereal on the shelf.
They sold a lot of cereal on Friday.
Now they only have 255 boxes left.
How many boxes of cereal did they sell?

Mrs. Curran had $410.
She bought a sports watch.
Now she has $279 left.
How much did the sports watch cost?

Mr. Jackson has a bag of lollipops.
He gave 136 lollipops to the second graders.
He gave 119 lollipops to the third graders.
There are 65 lollipops left.
How many lollipops did Mr. Jackson have at first?

There are 642 students at Memorial School.
295 students have pets.
How many students do not have pets?

Jill had $563.
She went to the mall to buy a DVD player.
Then she had $380 left.
How much did Jill pay for the DVD player?