meka matua
1. (noun) basic fact (maths).
Ko te meka matua, koia nei ngā tāpiritanga, ngā tangohanga, ngā whakareatanga me ngā whakawehenga me mātua mau ki te hinengaro, kia wawe anō ai te tiki atu i te pūmahara (TRP 2010:170). / The basic fact is the addition, subtraction, multiplication and division facts that should be memorised and available for immediate recall.