# Cubes and Cuboids: Calculate Volumes

In this worksheet, students must calculate the volume of the given cubes and cuboids.

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Volume and Capacity

Difficulty level:

#### Worksheet Overview

Use the following formulae to work out the volumes of these shapes:

Cube

We must know: the side length.

Remember that the length, the width and the height will all be equal to the side length, because this is a CUBE.

Volume of cube = side length × side length × side length

Cuboid

We must know: the length; the width; and the height.

Volume of cuboid = length × width × height

e.g. Calculate the volume of this cuboid in cm3.

The length is 15 cm, the width is 4 cm and the height is 8 cm.

Volume of cuboid = length × width × height = 15 × 4 × 8 = 60 × 8 = 480 cm3

e.g. Calculate the volume of this cube in mm3.

The side length is 7 cm, so the width and the height are also 7 cm.

This will be 70 mm.

NB: We want the answer in mm3 which is why we should work in mm not cm.

Volume of cube = side length × side length × side length = 70 × 70 × 70 = 49 × 7 × 10 × 10 × 10 = 343 × 1000 = 343000 mm3

NB: The length, the width and the height are all interchangeable with each other, depending on how you look at a cuboid.

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