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# Measurement (money): Donkey Sanctuary

## The Problem

Dora visited her local donkey sanctuary every weekend to see the donkey that she had adopted. Her donkey was called Martha. At the sanctuary, visitors could buy items for their adopted donkey in a small shop. The items (shown opposite) included bandages for wounds, brushes for grooming and leads for exercising. One weekend, Dora decided to buy some bandages for Martha. She paid for the bandages using 7 coins. She did not receive any change.

Which coins did Dora use to pay for the bandages? Is there more than one answer? How do you know?

Did you know?

Donkeys are intelligent creatures that have a unique ability to form strong bonds with each other and with humans. Incredibly, some donkeys’ heart rates have been known to keep time with the heart rates of the humans that look after them!

## Visualising the Problem and Getting Started

Which coins might Dora have in her purse?

What is the smallest amount of money that can be made with 7 coins?

What is the largest amount of money that can be made with 7 coins?