Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
20th December 2011
- 1Writing and Simplifying Ratio2 marks
Write the ratio 5 : 10 in the form 1 : n.
- 2Angles in Polygons2 marks
A regular polygon has an exterior angle of 60°. How many sides does it have?
- 3Probability Trees3 marks
7 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture3 marks
15 newts are marked and released. Later 12 are caught, of which 4 are marked. Estimate the population.
- 5Error Intervals2 marks
A number y is 78 when truncated to the nearest whole number. Write down the error interval for y.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of December 2011, including the monthly compilation PDF.