Humpty Doo Primary School is a Northern Territory Government primary school situated 40km South-East of Darwin. The school has a student population that reflects the multicultural diversity of the surrounding community with a large number of families who speak English as a Second Language. 25% of students identify as Aboriginal and Torres Strait Islander, and a further 30% of the students have Vietnamese, Thai, Filipino, Japanese, Indonesian, Cambodian, Spanish, Dutch or Chinese cultural
https://www.aitsl.edu.au/tools-resources/resource/using-mental-computation-strategies