Whakaoti i te 3.8+(4-1)*5^-22*4=

$$3.8 + ( 4 - 1 ) \cdot 5 ^ { - 2 } 2 \cdot 4 =$$

Aromātai

$$4.76$$

Ngā Upane Otinga

Tangohia te 1 i te 4, ka 3.

$$3.8+3\times 5^{-2}\times 2\times 4$$

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

$$3.8+3\times \frac{1}{25}\times 2\times 4$$

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

$$3.8+\frac{3}{25}\times 2\times 4$$

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

$$3.8+\frac{6}{25}\times 4$$

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

$$3.8+\frac{24}{25}$$

Tāpirihia te 3.8 ki te \frac{24}{25}, ka \frac{119}{25}.

$$\frac{119}{25}$$

Tauwehe

$$\frac{7 \cdot 17}{5 ^ {2}} = 4\frac{19}{25} = 4.76$$