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Can you read the number on the measuring jug? The measuring jug can hold 1000ml and the scale goes up by 100ml each time. There is 800ml of orange juice in the jug. Here are some more examples ...

To measure a road that is not straight ... we could then calculate its real length using the scale. If the map scale is 1:25000, we could first work out the length in cm, then convert to metres ...