Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
17th December 2010
- 1Bounds2 marks
A mass is 79 kg, correct to the nearest whole number. Write down the upper bound.
- 2Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 8x - 6, work out y when x = 5.
- 3Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 80. Work out y when x = 6.
- 4Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 11 cm and angle 180°. Work out its area, to 1 decimal place.
- 5Conditional Probability3 marks
21 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of December 2010, including the monthly compilation PDF.