Whakaoti i te 10-[(7*5)+(40div8)]-(9*5)div(4*2)]

$$10 - [ ( 7 \times 5 ) + ( 40 \div 8 ) ] - ( 9 \times 5 ) \div ( 4 \times 2 ) ]$$

Aromātai

$$-\frac{285}{8}=-35.625$$

Ngā Upane Otinga

Whakareatia te 7 ki te 5, ka 35.

$$10-\left(35+\frac{40}{8}\right)-\frac{9\times 5}{4\times 2}$$

Whakawehea te 40 ki te 8, kia riro ko 5.

$$10-\left(35+5\right)-\frac{9\times 5}{4\times 2}$$

Tāpirihia te 35 ki te 5, ka 40.

$$10-40-\frac{9\times 5}{4\times 2}$$

Tangohia te 40 i te 10, ka -30.

$$-30-\frac{9\times 5}{4\times 2}$$

Whakareatia te 9 ki te 5, ka 45.

$$-30-\frac{45}{4\times 2}$$

Whakareatia te 4 ki te 2, ka 8.

$$-30-\frac{45}{8}$$

Me tahuri te -30 ki te hautau -\frac{240}{8}.

$$-\frac{240}{8}-\frac{45}{8}$$

Tā te mea he rite te tauraro o -\frac{240}{8} me \frac{45}{8}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{-240-45}{8}$$

Tangohia te 45 i te -240, ka -285.

$$-\frac{285}{8}$$

Tauwehe

$$-\frac{285}{8} = -35\frac{5}{8} = -35.625$$