Maths 2

Carrie has glued some cubes together to make a large solid cube with nine small cubes showing on a face.

She paints the large cube red.

How many of the original small cubes have:

1. three faces painted red: 8 because each corner has 4 squares.
2. two faces painted red: 4 in each corner
3. one face painted red: 2 in each corner
4. no faces painted red: 1 in the middle of the square.