Students determine which of two stores is offering the better buy on plastic plates.

Given 84 seeds, students determine how to put the same number of seeds in each pot.

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

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

Students determine how many more pictures need to be drawn, when given a number of animal pictures.

Students determine how many puzzle pieces are left to finish a puzzle.