The parking lot has only blue and red cars. There are 6 cars parked. How many blue and how many red cars might be in the parking lot? Find as many ways as you can. Draw a picture and write an equation for each answer.

Extensions: Can you find all of the ways to have 6 red and blue cars in the parking lot? How many ways can you find to have a total of 5 cars? How many ways can you find to have a total of 7 cars? Do you see a pattern?