Выполни действия:1)4,37:1,9+8,78; 2)7,91-6,72:1,2 ;3)6,88:1,6-3,99; 4)10,05+7,37:1,7; 5)85,8:0,33-258,1; 6)1,968:0,41+28,2.
1)4,37:1,9+8,78= 11.08 2)7,91-6,72:1,2= 2.31 3)6,88:1,6-3,99= 0.31 4)10,05+7,37:1,7= 14.39 5)85,8:0,33-258,1= 1.9 6)1,968:0,41+28,2= 33