(25 + 20) : 5 = 45 : 5 = 9
25 : 5 + 15 = 5 + 15 = 20
20 : 5 + 1 = 4 + 1 = 5
63 : 9 = 7
(5 + 7) : 4 = 12 : 4 = 3
(9 - 5) * 5 = 4 * 5 = 20
40 : 5 + 17 = 8 + 17 = 25
(73 + 8) : 9 = 81 : 9 = 9
(40 - 22) : 9 = 18 : 9 = 2