Given a number of boxes put in a truck, students determine how many more boxes need to be put in the truck.

Students determine if two boys have the same amount of apples and oranges.

Students determine if Ben and Jill have the same amount of ladybugs and crickets in their jars.

Students determine how many more dinosaur books are needed for a total of ten books.

Students determine how much pie is left after four friends have each eaten a piece.