Daily Practice

Foundation

8th September 1981

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

1
Error Intervals2 marks
A length x is 17.7 cm, rounded to 1 decimal place. Write down the error interval for x.
2
Substitution2 marks
Work out the value of 3x + 12 when x = 7.
3
Best Buy Questions3 marks
A pack of 9 teabags costs £4.50. A pack of 18 costs £8.64. Which pack is better value?
4
Area and Perimeter2 marks
A rectangle has an area of 180 cm^2 and a width of 20 cm. Work out its perimeter.
5
Probability (Higher)3 marks
A biased coin lands on heads with probability 0.1. It is thrown 100 times. How many heads would you expect?

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