How many different two-digit numbers can you form using the digits
4, 5, 3, 6 , 8, 9 , 7 ,and 2 without repetition?

23, 24, 25, 26, 27, 28, 29
32, 34, 35, 36, 37, 38, 39
42, 43, 45, 46, 47, 48, 49
52, 53, 54, 56, 57, 58, 59
62, 63, 64, 65, 67, 68, 69
72, 73, 74, 75, 76, 78, 79
82, 83, 84, 85, 86, 87, 89
92, 93, 94, 95, 96, 97, 98
So in all there is 56 different two-digit solutions without repetition.