Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
29th December 2020
- 1Capture Recapture3 marks
60 beetles are marked and released. Later 16 are caught, of which 2 are marked. Estimate the population.
- 2Reverse Percentages3 marks
A bill is £888 including VAT at 20%. Work out the amount before VAT.
- 3Parallel and Perpendicular Lines3 marks
A line has equation y = -5x + 8. Work out the gradient of any line perpendicular to it.
- 4Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 5. Write y in terms of x.
- 5Enlarging with Negative Scale Factors3 marks
The point (-2, -1) is enlarged by scale factor -1 about the centre (-2, 2). Write down the coordinates of the image.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of December 2020, including the monthly compilation PDF.