Pāngarau

kīanga

expression

tūingoa

WHAKAMĀRAMA

He kohinga tau, taurangi rānei, e honoa ana ki te tohu paheko, pērā i te tāpiri, i te tango, i te whakarea, me te whakawehe. Karekau he tohu ōrite o te kīanga pāngarau, he whārite kē tērā. Hei tauira o te kīanga māmā: 5 + 7, 3x − 4y + 3, x2 + 4

A collection of numbers or variables which are linked together with signs for operations such as addition, subtraction, multiplication and division. A mathematical expression does not have an equal sign like an equation. Examples of simple expressions are: 5 + 7, 3x − 4y + 3, x2 + 4

Tauira KŌrero

Kohia mai ngā taurangi tairite o te kīanga nei.

He aha ngā taurangi i roto i te kīanga?

E taea ana te kīanga te whakarūnā?

WhakamĀrama Āpitihanga

Koia nei ngā momo huānga o roto i tētahi kīanga taurangi:

Ka taea te whakarūnā (arā, te whakapoto, te whakamāmā) tētahi kīanga taurangi mēnā he taurangi tairite kei roto. Hei tauira:


Kāore e taea te kīanga te whakarūnā mēnā he tairite-kore ngā taurangi: Arā, 3e + 2k ≠ 5ek


Arā anō ētahi kīanga, e rua, nui ake rānei ngā taurangi o roto:
3e + 2k + 5e = 8e + 2k (he taurangi tairite te ‘3e’ me te ‘5e’, he taurangi rerekē te 2k)

Hei tauira o te kīanga ōrite:

  • a + a = 2a
  • 2(a + 3) = 2a + 6
  • 3 + 4 = 8 − 1
  • p2 = p x p

Arā hoki te kīanga tōrau, he momo kīanga taurangi motuhake. Kotahi, nui ake rānei ngā huānga o roto i te kīanga tōrau, e honoa ana ki te tohu tāpiri, ki te tohu tango rānei (me he nui ake i te kotahi ngā huānga). Me tauoti tōrunga ngā taupū taurangi o te kīanga tōrau (pēnei i te x2 kaua te x-2). Hei tauira ēnei o te kīanga tōrau:

Tauira KŌrero

Kohia mai ngā taurangi tairite o te kīanga nei.

He aha ngā taurangi i roto i te kīanga?

E taea ana te kīanga te whakarūnā?

WhakamĀrama Āpitihanga