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Making 100
Can you find the pairs of numbers that add to make 100?
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A
B
10
90
20
80
30
70
40
60
50
50
15
85
25
75
35
65
45
55
19
81
29
71
39
61
49
51
16
84
26
74
36
64
46
54
17
83
27
73
37
63
47
53
14
86
24
76
34
66
44
56
12
88
22
78
32
68
42
48