Daily Practice

Foundation

22nd November 1977

5 questions · 11 marks · Grades 3-4 · 87 question types in this band

1
Error Intervals2 marks
A length x is 130 cm, rounded to the nearest 10. Write down the error interval for x.
2
Substitution2 marks
Work out the value of 8x - 9 when x = -1.
3
Exchange Rates2 marks
£1 is worth 1.24 US dollars. Convert 525 US dollars into pounds. Give your answer to the nearest penny.
4
Area and Perimeter2 marks
A rectangle has an area of 51 cm^2 and a width of 3 cm. Work out its perimeter.
5
Probability (Higher)3 marks
A biased coin lands on heads with probability 0.1. It is thrown 250 times. How many heads would you expect?

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