Pāngarau

kōaro

inverse

tūingoa, tūāhua

WHAKAMĀRAMA

Arā noa atu ngā momo kōaro i roto i te pāngarau. Katoa ēnei kōaro, he huripoki i tētahi āhuatanga. Ko te tangohanga te kōaro o te tāpiritanga. Ko te huri whakatemauī te kōaro o te huri whakatematau.

There are many types of inverse in mathematics. All the inverses are about changing something to the opposite, or turning it upside down. Subtraction is the inverse of addition. Turning left is the inverse of turning right.

Tauira KŌrero

Ko te whā tōraro te kōaro tāpiri o te whā.

E huri kōaro, kia aro atu ki muri.

Ko te kōaro o te whakarea ki te 3, ko te whakawehe ki te 3.

WhakamĀrama Āpitihanga

Ki te tāpiria tētahi tau me tōna kōaro tāpiri, ko te 0 te otinga. Hei tauira:

Ki te whakareatia tētahi tau ki tōna kōaro whakarea, ko te 1 te otinga. Hei tauira:

He kōaro te ‘+ 3’ me te ‘−3’. Nō reira, he kōaro anō ēnei paheko: te 4 + 3 = 7 me te 7 − 3 = 4.

He kōaro te ‘× 3’ me te ‘÷ 3’. Nō reira, he kōaro anō ēnei paheko: te 5 × 3 = 15 me te 15 ÷ 3 = 5.

Mēnā kāore e rerekē ana te pānuihia o tētahi tau, o tētahi kupu rānei mai i te taha mauī ki te matau, mai i te taha matau rānei ki te mauī, ka kīia he kōaro rite tērā. Hei tauira o te kōaro rite:

  • 121, 7337, 2002, 3554553
  • ihi, ara, ataata

Tauira KŌrero

Ko te whā tōraro te kōaro tāpiri o te whā.

E huri kōaro, kia aro atu ki muri.

Ko te kōaro o te whakarea ki te 3, ko te whakawehe ki te 3.

WhakamĀrama Āpitihanga