а) 2114+216 = 294+126 = 420б) 771298-129877 = 100046-100046 = 0в) -9088-9012 = -7920-1080 = -9000г) -777330-670777 = -256410-520590 = -777000
а) 2114+216 = 294+126 = 420
б) 771298-129877 = 100046-100046 = 0
в) -9088-9012 = -7920-1080 = -9000
г) -777330-670777 = -256410-520590 = -777000