The estimate for the value of 21.75+98.10.192\displaystyle \frac{21.75 + \sqrt{98.1}}{0.192}0.19221.75+98.1 is 150. Work out the appropriate rounded value for each of 21.75, 98.1 \sqrt{98.1}\,98.1 and 0.192.
247 exam-style questions on AQA GCSE Maths Estimating. Each one has a worked solution and a mark scheme showing where the marks go.