Use your calculator to work out 13.68+7.55.03×4.2\displaystyle \frac{13.68 + \sqrt{7.5}}{5.03 \times 4.2}5.03×4.213.68+7.5
Write down all the figures on your calculator display.
Write your answer to part (a) correct to 2 significant figures.
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.