Foundation
24th October 1981
- 1Systematic Listing2 marks
Using only the digits 3, 6, 5, 2 and no digit twice, how many different two-digit numbers can be made?
- 2Stem and Leaf2 marks
A stem and leaf diagram has a single stem 6 with the leaves 0, 4, 5, 8, 9. Work out the median of the five values.
- 3Error Intervals2 marks
A number y is 82 when truncated to the nearest whole number. Write down the error interval for y.
- 4Function Machines2 marks
A function machine multiplies by 9 then subtracts 7. 56 comes out. What went in?
- 5Scale Drawings2 marks
A map has a scale of 1 : 10000. Two villages are 8 cm apart on the map. How far apart are they in real life, in km?
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