tānga ngahuru
1. (noun) standard form (maths).
He tikanga te tānga ngahuru hei whakapoto i te tuhinga o ngā tau tino nui me ngā hautanga ā-ira tino iti. Ka whakamahia ngā taupū o te tekau (TRP 2010:250). / Standard form is a way of recording very large numbers and very small decimal fractions in a short form. Powers of ten are used (TRP 2010:250).