Use your calculator to work out 16.14+7.12896.4×4.0\displaystyle \frac{16.14 + \sqrt{7.1289}}{6.4 \times 4.0}6.4×4.016.14+7.1289
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.