The height of a building is measured as 16 metres, correct to the nearest metre.
Write down the least possible height of the building.
Write down the greatest possible upper bound for the height of the building.
Hence, write down the greatest possible difference between the measured height and the actual height of the building.
101 exam-style questions on AQA GCSE Maths Error Intervals. Each one has a worked solution and a mark scheme showing where the marks go.