Volume of box 1.5 by 2 by 4

Step by step

The question

Question: find the volume of a box 1.5 long, 2 wide and 4 high.

1 Length × width × height

Volume is how much space is inside.

We count the 1 by 1 by 1 cubes that fit.

The volume of a box is V = length × width × height.

Now put the numbers in: length = 1.5, width = 2 and height = 4.

Forget the points: 15 times 2 is 30.

The numbers have 1 digit after the point.

So the answer has 1 too: 3.0, which is 3.

That is one layer of 3 cubes.

There are 4 layers.

So V = 3 × 4.

3 times 4 is 12.

So the volume is 12 cubic units.