Whakaoti i te 38+(4-1)*5^-22*4=

$$38 + ( 4 - 1 ) \cdot 5 ^ { - 2 } 2 \cdot 4 =$$

Aromātai

$$\frac{974}{25}=38.96$$

Ngā Upane Otinga

Tangohia te 1 i te 4, ka 3.

$$38+3\times 5^{-2}\times 2\times 4$$

Tātaihia te 5 mā te pū o -2, kia riro ko \frac{1}{25}.

$$38+3\times \frac{1}{25}\times 2\times 4$$

Whakareatia te 3 ki te \frac{1}{25}, ka \frac{3}{25}.

$$38+\frac{3}{25}\times 2\times 4$$

Whakareatia te \frac{3}{25} ki te 2, ka \frac{6}{25}.

$$38+\frac{6}{25}\times 4$$

Whakareatia te \frac{6}{25} ki te 4, ka \frac{24}{25}.

$$38+\frac{24}{25}$$

Tāpirihia te 38 ki te \frac{24}{25}, ka \frac{974}{25}.

$$\frac{974}{25}$$

Tauwehe

$$\frac{2 \cdot 487}{5 ^ {2}} = 38\frac{24}{25} = 38.96$$