CPM Homework Help : CCG Problem 8-122

Multiple Choice: How many cubes with edge length $1$ unit would fit in a cube with edge length $3$ units?

Two cubes, one with a side length of 1 and the other a side length of 3.

Step 1:

Draw a rough sketch of a $3$ unit cube with $1$ unit cubes inside it.

A rectangular prism composed of 3 layers of 3 by 3 squares.

Step 2:

Multiply (length)(width)(height) to determine the correct answer.