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(1)2 + 8 =
(2)4 + 6 =
(3)9 + 5 =
(4)8 + 7 =
(5)8 + 9 =
(6)3 + 8 =
(7)7 + 4 =
(8)5 + 7 =
(9)7 + 3 =
(10)3 + 8 =
(11)3 + 9 =
(12)5 + 6 =
(13)1 + 9 =
(14)2 + 9 =
(15)1 + 9 =
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