Gallery Problems Exercise

How Many Colors?

Work Time

How Many Colors?

A child sees a box of blocks in a store. The child notices these things:

  • There are four different shapes.
  • There are two different sizes.
  • There are several different colors.
  • There are 40 blocks in the box.
  • There is exactly one block of each “shape-size-color” combination.
  1. Write an equation to find the number of colors in the box.
  2. Solve your equation and show your work.