Today we have a discussion starter question for you, inspired by a trip to the shops.

My shopping cost £40.95 today. What is the smallest number of coins required to make this amount?

If I paid with two £20s and a £10 note, what is the most efficient change?

Why would someone pay £41.05, as opposed to £41?

I purchased 17 items, do you have enough information to calculate the mean?

The most expensive item was £10, the cheapest was 45p. What does this allow you to calculate?

Two luxury items cost £9 in total. If I hadn’t bought these, what would the mean have been? Does this effect the range?

When I paid I was given this voucher:

What would the shopping have cost somewhere else?

What would the mean cost per item be after this discount?

What percentage discount is this?

You could also use this as a discussion starter about the number skills you use when you go shopping.

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