8.4-(1.8+0.5+2.5)-[6.8+0.2+(-0.7)*(-1)] eching

$$8.4 - ( 1.8 + 0.5 + 2.5 ) - [ 6.8 + 0.2 + ( - 0.7 ) \cdot ( - 1 ) ]$$

Baholash

$$-4,1$$

Yechim qadamlari

2,3 olish uchun 1,8 va 0,5'ni qo'shing.

$$8,4-\left(2,3+2,5\right)-\left(6,8+0,2-0,7\left(-1\right)\right)$$

4,8 olish uchun 2,3 va 2,5'ni qo'shing.

$$8,4-4,8-\left(6,8+0,2-0,7\left(-1\right)\right)$$

3,6 olish uchun 8,4 dan 4,8 ni ayirish.

$$3,6-\left(6,8+0,2-0,7\left(-1\right)\right)$$

7 olish uchun 6,8 va 0,2'ni qo'shing.

$$3,6-\left(7-0,7\left(-1\right)\right)$$

0,7 hosil qilish uchun -0,7 va -1 ni ko'paytirish.

$$3,6-\left(7+0,7\right)$$

7,7 olish uchun 7 va 0,7'ni qo'shing.

$$3,6-7,7$$

-4,1 olish uchun 3,6 dan 7,7 ni ayirish.

$$-4,1$$

Omil

$$-4,1$$