?
50 is one more than...
49
23
22, 24
28, 30
29
17
27
21
11
61 is one less than..
62
56
55, 57
62, 64
63
23
33
34
24
45 is one less than...
46
65
64, 66
80, 82
81
60
70
65
55
21 is one more than...
20
75
74, 76
97, 99
98
82
92
89
79
99 is one less than
100
99
98, 100
79, 81
80
90
100
99
89