1. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. To understand how to convert between metric and imperial units. Objectives To gain a rough ‘feel’ for comparing sizes in metric and imperial units.

2. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. Height in metres 1085 Height in inches 42315 1 metre is approximately 39 inches The number of inches is larger, so multiply by 39 in this direction

3. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. Length in inches 12 Length in cm 30.48 1 inch is approximately 2.54 cm

4. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. Mass in kg 5 Mass in pounds 11 1 kg is approximately 2.2 pounds

5. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. One of the units will be smaller than the other, so there will be more of them. Summary Think about which unit should be greater in number and this will help you decide whether or not to multiply or divide.