Pirate Artithmetics

In search of the mysterious treasure of the famous Pirate Arithmeticus, the arithmetic pirates have landed on the treasure island. Equipped with an old treasure map they set off on their search; a hundred steps towards the North, then twenty steps towards the left, past the statue of the monkey and fifty steps in the direction of the pig palm tree.

Once they have reached the target, the pirates dig down impatiently into the earth. There it is! A treasure chest brimming with gold coins. When it comes to dividing up the treasure, the pirates have to prove their arithmetical abilities as only the cleverest pirate gets the largest share of the booty.