Whakaoti i te 1+15+15*15/2+15*15*15/6

$$1+15+ \frac{ 15 \times 15 }{ 2 } + \frac{ 15 \times 15 \times 15 }{ 6 }$$

Aromātai

$$691$$

Ngā Upane Otinga

Tāpirihia te 1 ki te 15, ka 16.

$$16+\frac{15\times 15}{2}+\frac{15\times 15\times 15}{6}$$

Whakareatia te 15 ki te 15, ka 225.

$$16+\frac{225}{2}+\frac{15\times 15\times 15}{6}$$

Me tahuri te 16 ki te hautau \frac{32}{2}.

$$\frac{32}{2}+\frac{225}{2}+\frac{15\times 15\times 15}{6}$$

Tā te mea he rite te tauraro o \frac{32}{2} me \frac{225}{2}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{32+225}{2}+\frac{15\times 15\times 15}{6}$$

Tāpirihia te 32 ki te 225, ka 257.

$$\frac{257}{2}+\frac{15\times 15\times 15}{6}$$

Whakareatia te 15 ki te 15, ka 225.

$$\frac{257}{2}+\frac{225\times 15}{6}$$

Whakareatia te 225 ki te 15, ka 3375.

$$\frac{257}{2}+\frac{3375}{6}$$

Whakahekea te hautanga \frac{3375}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$\frac{257}{2}+\frac{1125}{2}$$

Tā te mea he rite te tauraro o \frac{257}{2} me \frac{1125}{2}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{257+1125}{2}$$

Tāpirihia te 257 ki te 1125, ka 1382.

$$\frac{1382}{2}$$

Whakawehea te 1382 ki te 2, kia riro ko 691.

$$691$$

Tauwehe

$$691$$