Whakaoti i te 800*72+800*72*73/2*12*10/100

$$800 \times 72 + 800 \times \frac { 72 \times 73 } { 2 \times 12 } \times \frac { 10 } { 100 }$$

Aromātai

$$75120$$

Ngā Upane Otinga

Whakareatia te 800 ki te 72, ka 57600.

$$57600+800\times \frac{72\times 73}{2\times 12}\times \frac{10}{100}$$

Me whakakore tahi te 2\times 12 i te taurunga me te tauraro.

$$57600+800\times 3\times 73\times \frac{10}{100}$$

Whakareatia te 3 ki te 73, ka 219.

$$57600+800\times 219\times \frac{10}{100}$$

Whakareatia te 800 ki te 219, ka 175200.

$$57600+175200\times \frac{10}{100}$$

Whakahekea te hautanga \frac{10}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 10.

$$57600+175200\times \frac{1}{10}$$

Whakareatia te 175200 ki te \frac{1}{10}, ka \frac{175200}{10}.

$$57600+\frac{175200}{10}$$

Whakawehea te 175200 ki te 10, kia riro ko 17520.

$$57600+17520$$

Tāpirihia te 57600 ki te 17520, ka 75120.

$$75120$$

Tauwehe

$$2^{4}\times 3\times 5\times 313$$