25*2.5-5*2.5^2 eching

$$25 \cdot 2.5 - 5 \cdot 2.5 ^ { 2 }$$

Baholash

$$31,25$$

Yechim qadamlari

62,5 hosil qilish uchun 25 va 2,5 ni ko'paytirish.

$$62,5-5\times 2,5^{2}$$

2 daraja ko‘rsatkichini 2,5 ga hisoblang va 6,25 ni qiymatni oling.

$$62,5-5\times 6,25$$

31,25 hosil qilish uchun 5 va 6,25 ni ko'paytirish.

$$62,5-31,25$$

31,25 olish uchun 62,5 dan 31,25 ni ayirish.

$$31,25$$

Omil

$$\frac{5 ^ {3}}{2 ^ {2}} = 31\frac{1}{4} = 31,25$$