# Solve Problems Using Metric Unit Conversions

In this worksheet, students will convert between metric units when solving problems

Key stage:  KS 3

Curriculum topic:   Ratio, Proportion and Rates of Change

Curriculum subtopic:   Change Between Related Standard Units

Difficulty level:

#### Worksheet Overview

In this activity, we will use what we know about converting between metric units to solve problems.

Let's recap on what we know:

Length

10 mm = 1 cm

100 cm = 1 m

1,000 m = 1 km

Mass

1,000 g = 1 kg

1,000 kg = 1 tonne

Capacity (volume)

1 cl = 10 ml

100 ml = 1 litre

1,000 cl = 1 litre

Now let's use this information to solve a problem!

Question

Molly is 1.36 m tall and her brother Tom is 8 cm taller.

How tall is Tom in metres?

Molly's height is in m and Tom's extra height is in cm.

The answer is looking for metres, so we will need to convert the 8 cm to metres.

For centimetres to metres we divide by 100

8 cm = 0.08 m

Tom's height is 1.36 + 0.08 = 1.44 metres

Let's try a mixture of questions now!

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