Everyday maths 1 (Wales)
Everyday maths 1 (Wales)

This free course is available to start right now. Review the full course description and key learning outcomes and create an account and enrol if you want a free statement of participation.

Free course

Everyday maths 1 (Wales)

1 Using metric measurements: length

We can use different units to measure the length, width or height of items. We are going to focus on metric units.

Metric units of length

Metric unit Abbreviation
millimetre mm
centimetre cm
metre m
kilometre km

A millimetre is the smallest metric unit used by most people to measure the length of something. You would commonly use millimetres to measure items that are really small or need to be measured very accurately; for example, the dimensions of a washing machine is usually measured in millimetres.

Centimetres and metres are also commonly used to measure items for everyday tasks.

Kilometres would be used to measure the distance between places. A runner may clock the distance that they have run in kilometres.

Activity 1: Which unit?

Which unit would you use to measure the following?

  1. A washing machine
  2. The distance between Wrexham and Cardiff
  3. A nail
  4. A kitchen
  5. A bus
  6. A park run
  7. Your waist
  8. A sofa
  9. An envelope
  10. A screw head

Answer

Suggested answers:

  1. Centimetres or millimetres
  2. Kilometres
  3. Centimetres or millimetres
  4. Metres
  5. Metres
  6. Kilometres
  7. Centimetres
  8. Centimetres or metres
  9. Centimetres
  10. Millimetres
FSM_1_CYMRU

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to university level study, find out more about the types of qualifications we offer, including our entry level Access courses and Certificates.

Not ready for University study then browse over 900 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus