Question

60 : 6, 80 : 8, (25+35) : 10, (47+23) : 7, 6-2-2-2-, 8-2-2-2-2-2

Объясните пожалуйста.

Answer 1

60 : 6 = 10 , 80 : 8 = 10 , 25 + 35 = 60 : 10 = 6 , 47 + 23 = 70 : 7 = 10 , 6 - 2 = 4 - 2 =2 - 2 = 0 , 8 - 2 = 6 - 2 = 4 - 2 = 2 - 2 = 0 - 2 = - 2 .