Bronze
1.John buys a pen for £1.70 and a notepad for £3.20. How much did he spend altogether?
2. Ryan bought three cakes for 22p each. How much did he spend?
Explain how to solve these problems.
Silver
![](https://www.broadheath.coventry.sch.uk/wp-content/uploads/2019/01/challenge-silver.png)
Gold
Explain how you know.
![](https://www.broadheath.coventry.sch.uk/wp-content/uploads/2019/01/challenge-gold.png)
Platinum
Imagine your family agreed to give you some pocket money every day for a month! You can choose from the following options:
- £10 every day
- £3 on the first day, £3.50 on the second, £4 on the third, and so on, increasing by 50p per day
- 1p on the first day, 2p on the second, 4p on the third, and so on, doubling each day.
Without doing any working out, which one would you choose, and why?
In a month with 31 days, how much money would you have by the end of the month, under each system? You may wish to explore using a spreadsheet…
In which months would option 1 be better than option 2?
If your family stopped your pocket money on day 8, which option would give you the most?
On which day of the month does option 3 become the most fruitful?
If you chose option 3, how many days would it be before you became a millionaire?
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