This film was taken in 1980. The man interviewed is a trade store owner who has developed new ways of using the body part counting system to solve arithmetic problems. He is presented with the problem that he has one kina and sixty toea and spends seventy toea. In the video, he represents one kina sixty toea as 16, distributing the value as shoulder (10) and wrist (6). Then from the side for which he has registered shoulder (10), he indicates that he spends the equivalent of seven or forearm (7).