Daily Practice

Foundation

31st May 1983

5 questions · 12 marks · Grades 3-4 · 87 question types in this band

1
Error Intervals2 marks
A length x is 370 cm, rounded to the nearest 10. Write down the error interval for x.
2
Substitution2 marks
Work out the value of 2x + 9 when x = 6.
3
Best Buy Questions3 marks
A pack of 7 teabags costs £1.05. A pack of 14 costs £1.54. Which pack is better value?
4
Angles in Polygons2 marks
Work out the size of one exterior angle of a regular nonagon.
5
Probability (Higher)3 marks
A biased coin lands on heads with probability 0.25. It is thrown 100 times. How many heads would you expect?

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