rautaki whakarōpū
1. (noun) grouping strategy.
He ara te rautaki whakarōpū e oti ai tētahi whakareatanga, tētahi whakawehenga rānei, arā, ko te wāwāhi tau ki ētahi rōpū māmā (TRP 2010:239). / The grouping strategy is a way of solving multiplication or division, where numbers are partitioned into simpler groups (TRP 2010:239).