(45 + 45) : 10 = 90 : 10 = 9
(25 + 35) : 10 = 60 : 10 = 6
(15 + 45) : 6 = 60 : 6 = 10
5 ⋅ 4 = 20
20 : 4 = 5
40 : 8 = 5
Ответ: 9, 6, 10, 20, 5, 5