WhakamĀrama Āpitihanga
He rārangi tau tēnei e whakaatu ana i ngā tau tōpū. He mutunga-kore ngā tau tōrunga, he mutunga-kore hoki ngā tau tōraro:
Kāore he rerekētanga o te 3 me te +3. I ētahi wā, ka tuhia te tohu +, he wā anō kāore e tuhia.
Mō te tāpiritanga, ko te −3 te kōaro o te +3. Mēnā ka tāpiria tētahi tau me tōna kōaro, ko te 0 te otinga. He tauira:
+3 + −3 = 0 +4 + −4 = 0 +36 + −36 = 0 +100 + −100 = 0
Koia nei tētahi tāpiritanga me tētahi tangohanga e whakaaturia ana ki te rārangi tau:
