We can display the upper and lower bounds using error intervals. For example, A number xx x x has been rounded to 11 1 1 decimal place and given as 6.4.6.4. 6.4. 6.4. The smallest number that will round up to 6.46.4 6.4 6.4 is 6.356.35 6.35 6.35 and any number up to 6.456.45...
Find more details, visit www.edexcel.com/gcsemaths2015guide For both tiers, there will be new knowledge, skills and understanding that your students will be assessed on in the new GCSE Mathematics (9-1). Topics new to both tiers • Use inequality notation to specify simple error intervals ...