Give an example of a spreadsheet formula that uses cell references and the most efficient formula to mathematically calculate each of the following: (2 marks each = 10 marks)

If A1=15, B1=100, C1=200

	Formula
Calculate the product of 15 and 100		2 marks
Calculate the average of 15, 100, 200		2 marks
Calculate the highest number of 15,100, 200		2 marks
Calculate the difference of 200 and 100		2 marks
Calculate the lowest number of 15, 100, 200		2 marks