The weight of a bag of potatoes is k k\,k kg, correct to the nearest kg.
Write down, in terms of kkk, the smallest possible weight of the bag of potatoes.
Write down, in terms of kkk, the largest possible weight of the bag of potatoes.
101 exam-style questions on OCR GCSE Maths Error Intervals. Each one has a worked solution and a mark scheme showing where the marks go.