1. Вычисли 75 : 5 = 60 : 12 = 23 x 4 = (860-60): 10 = 600-60 x 2 = 710-(620+80) =

Решение:

1. 
   

   \[75 : 5 = 15\]

   
   

   \[60 : 12 = 5\]

   
   

   \[23 \times 4 = 92\]

   
   
2. 
   

   \[(860 - 60) : 10 = 800 : 10 = 80\]

   
   

   \[600 - 60 \times 2 = 600 - 120 = 480\]

   
   

   \[710 - (620 + 80) = 710 - 700 = 10\]

   
   

Ответ: 15, 5, 92, 80, 480, 10