External Resource
Te Whakareatanga me te Whakawehenga Tau ā-Ira
Tihei Pāngarau: Te Tau me te Taurangi, Taumata 4
He ataata e whakamārama ana i ētahi tikanga o te pūnaha tau mō te whakarea me te whakawehe ki te 10, ki te 100, ki te 1,000 hoki.