Whakaoti i te (432*10^-1)-(25*10^-1)quad115

$$( 432 \times 10 ^ { - 1 } ) - ( 25 \times 10 ^ { - 1 } ) \quad 115$$

Aromātai

$$-\frac{2443}{10}=-244.3$$

Ngā Upane Otinga

Tātaihia te 10 mā te pū o -1, kia riro ko \frac{1}{10}.

$$432\times \frac{1}{10}-25\times 10^{-1}\times 115$$

Whakareatia te 432 ki te \frac{1}{10}, ka \frac{216}{5}.

$$\frac{216}{5}-25\times 10^{-1}\times 115$$

Tātaihia te 10 mā te pū o -1, kia riro ko \frac{1}{10}.

$$\frac{216}{5}-25\times \frac{1}{10}\times 115$$

Whakareatia te 25 ki te \frac{1}{10}, ka \frac{5}{2}.

$$\frac{216}{5}-\frac{5}{2}\times 115$$

Whakareatia te \frac{5}{2} ki te 115, ka \frac{575}{2}.

$$\frac{216}{5}-\frac{575}{2}$$

Tangohia te \frac{575}{2} i te \frac{216}{5}, ka -\frac{2443}{10}.

$$-\frac{2443}{10}$$

Tauwehe

$$-\frac{2443}{10} = -244\frac{3}{10} = -244.3$$