Calcula:
 $5\cdot\left(4-2\right)=$  

Calcula

16 - 8 : 4 + 2 =

Calcula:

10 - 3² + 6 : 3 =

Calcula:

12 - 16 : 2² =

Calcula:
 $2\cdot\left(20-4\cdot4\right)=$   

Calcula:

2³ + (9 - 3) : 3 =

Resuelve:

9² - (15 - 3) : 3 =

Calcula:

6 + 9 : 3 - 5 =

Calcula:

16 : 2 + 18 : 3 =

Calcula:

(9-3):2+7 =

Calcula:

(4+8) :2 - (6-2) =

Calcula:
 $\left(8+2\cdot2\right)+\left(25:5+3\right)=$  

Calcula:
 $\left(6:3+3\right)-\left(2\cdot2-1\right)=$  

Calcula:
 $\sqrt{25}+3\cdot2-7=$  

  Calcula:  
 $2+3\cdot4-\sqrt{49}=$