17:25A'BhuthSeries 1Episode 2: Toirt air falbh gu 10 (Subtraction within 10)BBC ALBA Duration: 14 minutes Mon 28th Sep 2009, 17:25 on BBC ALBAChildren's mathematics series. Different ways of adding up to ten.ContributorsProducer:John J MacIssacDirector:John J MacIssacWriter:Anne MorrisonGenresLearningPrimaryBrandA'BhuthSeriesA'Bhuth: Series 1 Source: BBC Online