Key learning points

1. When calculating often 3 significant figures is the required degree of accuracy.
2. When working with integers in context different degrees of accuracy may be appropriate.
3. When working with decimals in context different degrees of accuracy may be appropriate.

Common misconception

Keywords

• Degree of accuracy - A degree of accuracy shows how precise a number or measurement is. E.g. to the nearest cm, nearest 10, 1 s.f., etc