Converting standard units

Sample Converting standard units questions

A few of the 54 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 12 marksGrade 1-2
   Convert 900 cm into m.
   Show the worked solution

   100 cm = 1 m, so divide by 100: $900 \div 100 = 9$ m M1 A1
2. Question 22 marksGrade 1-2
   Convert 7000 m into km.
   Show the worked solution

What are the common mistakes in Converting standard units?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

• Wrong conversion factor applied (e.g. cm-m, g-kg)

  Multiplied by 1000000 instead of dividing when converting m to the larger unit km

• Uses the linear metric conversion factor directly for an area/volume conversion instead of squaring/cubing it (e.g. thinks 1 sq m = 100 sq cm instead of 10,000 sq cm)

  Used the linear conversion factor (100) directly instead of cubing it for a volume conversion

• Uses the wrong power of ten when converting between metric units

  Divides 4500 by 100 instead of 1000, treating the mm-to-m conversion as if it needed the same factor as cm-to-m.

Quick answers about Converting standard units

How many Converting standard units practice questions are there?

There are 54 self-marking GCSE and IGCSE Maths questions on Converting standard units, written for AQA, Pearson, OCR, Pearson International GCSE Maths A (4MA1), Cambridge IGCSE Mathematics (0580), Cambridge IGCSE (9-1) Mathematics (0980) across Foundation and Higher and Core and Extended tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Converting standard units?

No. You can start practising Converting standard units straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.