Foundation
11th October 1980
- 1Systematic Listing2 marks
Using only the digits 2, 3, 7, 4 and no digit twice, how many different two-digit numbers can be made?
- 2Frequency Trees3 marks
160 people were surveyed. 70 were adults, of whom 15 said yes. 10 of the children said yes. How many said yes altogether?
- 3Error Intervals2 marks
A number y is 46 when truncated to the nearest whole number. Write down the error interval for y.
- 4Function Machines2 marks
A function machine multiplies by 8 then subtracts 2. 110 comes out. What went in?
- 5Real Life and Distance Time Graphs2 marks
Isla drives 160 km in 4 hours. Work out the average speed in km/h.
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