Question

A zoo costs £40 for an adult and £28 for a child entry.

How much for 2 adults and 2 children? also explain how you got the answer.

Answer 1

£136

Explanation:

To find the total cost, add up the costs. You can use the properties of addition and multiplication to simplify the process, if you like.

Total cost

The sum of the costs of the four tickets is ...

£40 +£40 +£28 +£28 = £136 . . . . total cost of entry

You can group these and make use of the distributive property

= (£40 +£40) +(£28 +£28) = 2(£40) +2(£28) = £80 +£56 = £136

And you can group them differently:

= (£40 +£28) +(£40 +£28)

= 2(£40 +£28) = 2(£68) = £136