Whakaoti i te 8.4*0.1+3*(-4*0.25+3^2)+4.1div2

$$8.4 \cdot 0.1 + 3 \cdot ( - 4 \cdot 0.25 + 3 ^ { 2 } ) + 4.1 \div 2$$

Aromātai

$$26.89$$

Ngā Upane Otinga

Whakareatia te 8.4 ki te 0.1, ka 0.84.

$$0.84+3\left(-4\times 0.25+3^{2}\right)+\frac{4.1}{2}$$

Whakareatia te -4 ki te 0.25, ka -1.

$$0.84+3\left(-1+3^{2}\right)+\frac{4.1}{2}$$

Tātaihia te 3 mā te pū o 2, kia riro ko 9.

$$0.84+3\left(-1+9\right)+\frac{4.1}{2}$$

Tāpirihia te -1 ki te 9, ka 8.

$$0.84+3\times 8+\frac{4.1}{2}$$

Whakareatia te 3 ki te 8, ka 24.

$$0.84+24+\frac{4.1}{2}$$

Tāpirihia te 0.84 ki te 24, ka 24.84.

$$24.84+\frac{4.1}{2}$$

Whakarohaina te \frac{4.1}{2} mā te whakarea i te taurunga me te tauraro ki te 10.

$$24.84+\frac{41}{20}$$

Me tahuri ki tau ā-ira 24.84 ki te hautau \frac{2484}{100}. Whakahekea te hautanga \frac{2484}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{621}{25}+\frac{41}{20}$$

Ko te maha noa iti rawa atu o 25 me 20 ko 100. Me tahuri \frac{621}{25} me \frac{41}{20} ki te hautau me te tautūnga 100.

$$\frac{2484}{100}+\frac{205}{100}$$

Tā te mea he rite te tauraro o \frac{2484}{100} me \frac{205}{100}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{2484+205}{100}$$

Tāpirihia te 2484 ki te 205, ka 2689.

$$\frac{2689}{100}$$

Tauwehe

$$\frac{2689}{2 ^ {2} \cdot 5 ^ {2}} = 26\frac{89}{100} = 26.89$$