Question

A rectangular prism with a volume of 2 cubic units is filled with cubes with side lengths of 1/4 unit.

How many 1/4 unit cubes does it take to fill the prism?

Answer 1

128 cubes

Explanation:

Volume of 1 cube = (¼)³

= 1/64

No. of cubes required:

2 ÷ 1/64

2 × 64

128

Answer 2

128 cubes

Explanation:

Take the volume and divide by the volume of the cube

V cube = 1/4 * 1/4 * 1/4 = 1/64

Assuming the volume of the prism is 2 units^3

2 ÷ 1/64

Copy dot flip

2 * 64/1

128 cubes