Question

There are 33

small cubes in the cube below.
Write an expression for the number of small
cubes in the large cube at the right.

Answer 1

• 729 small cubes

Explanation:

The small cube has side of 3 units and its volume is:

• V = s³ = 3³

The large cube is 3 times larger on each side, so its volume is:

• V = (3*3)³ = 9³ = 729 unit cubes