Foundation
22nd October 1983
- 1Error Intervals2 marks
A length x is 450 cm, rounded to the nearest 10. Write down the error interval for x.
- 2Function Machines2 marks
A function machine multiplies by 6 then subtracts 9. 45 comes out. What went in?
- 3Exchange Rates2 marks
£1 is worth 1.24 US dollars. Convert 600 US dollars into pounds. Give your answer to the nearest penny.
- 4Transformations2 marks
The point (5, 4) is translated by the column vector (-1, -2). Write down the coordinates of the image.
- 5Systematic Listing2 marks
Using only the digits 9, 4, 2 and no digit twice, how many different two-digit numbers can be made?
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