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​Q15: Question – Paper 3 – June 2018
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Question
15)
​Jenny is asked to find the value of        12 – 2 × 4 

Here is her working. 
12 – 2 × 4 = 10 × 4 = 40 
Jenny’s answer is wrong.

​a) Explain what Jenny has done wrong. 
[1 mark]​

Rehan is asked to find the range of the numbers
3     1     8     7     5
Here is his working
Range = 5 – 3 = 2 

This is wrong.

​b) Explain why. 
[1 mark]​