Whakaoti i te 5*10^-4-3*10^-5

$$5 \times 10 ^ { - 4 } - 3 \times 10 ^ { - 5 }$$

Aromātai

$$\frac{47}{100000}=0.00047$$

Ngā Upane Otinga

Tātaihia te 10 mā te pū o -4, kia riro ko \frac{1}{10000}.

$$5\times \frac{1}{10000}-3\times 10^{-5}$$

Whakareatia te 5 ki te \frac{1}{10000}, ka \frac{1}{2000}.

$$\frac{1}{2000}-3\times 10^{-5}$$

Tātaihia te 10 mā te pū o -5, kia riro ko \frac{1}{100000}.

$$\frac{1}{2000}-3\times \frac{1}{100000}$$

Whakareatia te 3 ki te \frac{1}{100000}, ka \frac{3}{100000}.

$$\frac{1}{2000}-\frac{3}{100000}$$

Tangohia te \frac{3}{100000} i te \frac{1}{2000}, ka \frac{47}{100000}.

$$\frac{47}{100000}$$

Tauwehe

$$\frac{47}{2 ^ {5} \cdot 5 ^ {5}} = 0.00047$$