[(3+12-5):2-4+2]*(4+2-1) eching

$$[ ( 3 + 12 - 5 ) : 2 - 4 + 2 ] \cdot ( 4 + 2 - 1 )$$

Baholash

$$15$$

Yechim qadamlari

15 olish uchun 3 va 12'ni qo'shing.

$$\left(\frac{15-5}{2}-4+2\right)\left(4+2-1\right)$$

10 olish uchun 15 dan 5 ni ayirish.

$$\left(\frac{10}{2}-4+2\right)\left(4+2-1\right)$$

5 ni olish uchun 10 ni 2 ga bo‘ling.

$$\left(5-4+2\right)\left(4+2-1\right)$$

1 olish uchun 5 dan 4 ni ayirish.

$$\left(1+2\right)\left(4+2-1\right)$$

3 olish uchun 1 va 2'ni qo'shing.

$$3\left(4+2-1\right)$$

6 olish uchun 4 va 2'ni qo'shing.

$$3\left(6-1\right)$$

5 olish uchun 6 dan 1 ni ayirish.

$$3\times 5$$

15 hosil qilish uchun 3 va 5 ni ko'paytirish.

$$15$$

Omil

$$3\times 5$$