Numeracy
20th August 1990
- 1Systematic Listing2 marks
Using only the digits 1, 4, 3, 6 and no digit twice, how many different two-digit numbers can be made?
- 2Pictograms2 marks
On a pictogram one symbol stands for 10 trees. A row shows 4 whole symbols and one half symbol. How many trees is that?
- 3Negative Numbers2 marks
At midnight the temperature in Fort William is -9°C. By noon it has risen by 18°C. What is the temperature at noon?
- 4Function Machines2 marks
A function machine multiplies by 4 then subtracts 7. 1 comes out. What went in?
- 5Scale Drawings2 marks
A model of an aircraft is built to a scale of 1 : 25. The real length is 3 m. How long is the model, in cm?
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