20 + 20 = ?
40
50 + 30 = ?
80
32 + 9 = ?
41
52 + 52 = ?
104
45+ 32 = ?
77
57 + 63 = ?
120
37 + 26 + 9 = ?
72
72 + 79 + 51 = ?
202
45 + ____ = 70
25
82 + ___ = 164
82
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