The mass of a suitcase is 18 kilograms, correct to the nearest kilogram.
Write down the least possible mass of the suitcase.
Write down the greatest possible mass of the suitcase.
Practise AQA GCSE Maths Error Intervals with exam-style questions for Foundation and Higher tier. 84 questions, matched to the AQA GCSE Maths (8300) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.