Some of the questions at the Otago Mathletics Competition at the Dunedin Town Hall yesterday would have had adults scratching their heads - but not the 10- and 11-year-olds from Kaikorai Primary School's No 1 Year 6 team.
Team members Emily Williams, Aleisha Ruske, Nicolas Taylor and Malcolm-Jesse McIver correctly answered "zero", and it was one of the 32 answers which helped them blitz the Year 6 competition.
The team was one of 65 Year 6-12 teams from Otago which participated in the event.
Event co-ordinator Jan Savell said there was a great deal of noise as the teams discussed their answers and runners took answers to the markers.
"Despite the mayhem, there were no injuries, but we did have a couple of kids who had to pull out asthma inhalers. They don't call it mathletics for nothing."