2*10^-3+5*10^-4= eching

$$2 \times 10 ^ { - 3 } + 5 \times 10 ^ { - 4 } =$$

Baholash

$$\frac{1}{400}=0,0025$$

Yechim qadamlari

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

$$2\times \frac{1}{1000}+5\times 10^{-4}$$

\frac{1}{500} hosil qilish uchun 2 va \frac{1}{1000} ni ko'paytirish.

$$\frac{1}{500}+5\times 10^{-4}$$

-4 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{10000} ni qiymatni oling.

$$\frac{1}{500}+5\times \frac{1}{10000}$$

\frac{1}{2000} hosil qilish uchun 5 va \frac{1}{10000} ni ko'paytirish.

$$\frac{1}{500}+\frac{1}{2000}$$

\frac{1}{400} olish uchun \frac{1}{500} va \frac{1}{2000}'ni qo'shing.

$$\frac{1}{400}$$

Omil

$$\frac{1}{2 ^ {4} \cdot 5 ^ {2}} = 0,0025$$