(138*10^2)*(54*10^-5) eching

$$( 138 \times 10 ^ { 2 } ) \times ( 54 \times 10 ^ { - 5 } )$$

Baholash

$$\frac{1863}{250}=7,452$$

Yechim qadamlari

Ayni asosning daraja ko‘rsatkichlarini ko‘paytirish uchun ularning darajalarini qo‘shing. 2 va -5 ni qo‘shib, -3 ni oling.

$$138\times 10^{-3}\times 54$$

-3 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{1000} ni qiymatni oling.

$$138\times \frac{1}{1000}\times 54$$

\frac{69}{500} hosil qilish uchun 138 va \frac{1}{1000} ni ko'paytirish.

$$\frac{69}{500}\times 54$$

\frac{1863}{250} hosil qilish uchun \frac{69}{500} va 54 ni ko'paytirish.

$$\frac{1863}{250}$$

Omil

$$\frac{3 ^ {4} \cdot 23}{2 \cdot 5 ^ {3}} = 7\frac{113}{250} = 7,452$$