The mass of a crate is 400 kg, correct to the nearest 100 kg.
Write down the smallest possible mass of the crate.
Write down the largest possible mass of the crate.
Practise OCR GCSE Maths Error Intervals with exam-style questions for Foundation and Higher tier. 84 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.