Useful formulae:
=SUM(A1+B1) Addition
=SUM(A1:A20) Addition of a set of numbers (sum)
=SUM(A1B1) Subtraction
=SUM(A1*B1) Multiplication
=SUM(A1/B1) Division
Ten friends have a total of £100 to spend on a birthday party.
Forty people will be attending the party, so they need to carefully consider what food and drink to buy with their £100.
The local shop sells the items below at the given prices:
Canned drinks 40p
Sandwiches 50p
Crisps 15p
Jelly 30p
Sausage rolls 60p
1. Copy the spreadsheet that is shown started below.
2. Write the formula for Cost X Quantity To Buy into the Money Spent column.
3. Copy it down the spreadsheet by clicking and dragging the small square in the corner of the cell.
4. Use the sum function to display the Total Spent so far.
5. Now add values into the Quantity To Buy column so that exactly £100 is spent on party food and drink.
6. Apply currency formatting to any cells that contain money.
7. Save your work call it – PARTY
Food / Drink 
Cost 
Quantity To Buy 
Money Spent 
Canned drinks 
0.40 


Sandwiches 
0.50 


Crisps 
0.15 


Jelly 
0.30 


Sausage rolls 
0.60 




Total Spent = 
