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Ngā Raru Ōrite mai i te Rapu Tukutuku

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\left(\sqrt{10}\right)^{2}-3^{2}+1.2
Whakaarohia te \left(\sqrt{10}-3\right)\left(\sqrt{10}+3\right). Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
10-3^{2}+1.2
Ko te pūrua o \sqrt{10} ko 10.
10-9+1.2
Tātaihia te 3 mā te pū o 2, kia riro ko 9.
1+1.2
Tangohia te 9 i te 10, ka 1.
2.2
Tāpirihia te 1 ki te 1.2, ka 2.2.