Tīpoka ki ngā ihirangi matua
Aromātai
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Tauwehe
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

4-\left(-5\right)
Whakawehea te -20 ki te 4, kia riro ko -5.
4+5
Ko te tauaro o -5 ko 5.
9
Tāpirihia te 4 ki te 5, ka 9.