Use your calculator to work out 7.25−6.251.282\displaystyle \frac{\sqrt{7.25 - 6.25}}{1.28^2}1.2827.25−6.25
Write down all the figures on your calculator display.
Write your answer to part (a) correct to 2 decimal places.
192 exam-style questions on OCR GCSE Maths Using a Calculator. Each one has a worked solution and a mark scheme showing where the marks go.