Which 3 go together?

For each rectangle:

• Mark or shade the rectangle to show a strategy for finding its area. 
• Write 1 or more expressions that can represent how you find the area.

Your teacher will give you a set of cards.

Sort the cards into groups so that the expressions in each group can represent the area of the same rectangle. Be ready to explain your reasoning.

You can draw rectangles if you find them helpful.