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Examination question - Year 11 yearly, 2011 Q23 (Independent schools)

The original question was:
Image of part (a) of the question

Another format for these desk checks is shown below:
Image of part (b) of the question

Image of parts (c) and (d) of the question

Alternative desk check format - EASIER IN EXAMS as there is no need to write out the commands:
Image of desk check for square root of 2, accurate to 1 decimal place

Image of desk check for square root of 2, accurate to 1 decimal place

Image of desk check for square root of 9, accurate to 0 decimal places

Image of desk check for square root of 25, accurate to the nearest whole number