Lista1

(1) 1 + 57 =
(2) 58 - 48 =
(3) 35 X 90 =
(4) 82 : 28 =
(5) 18/86 + 72/52 =
(6) 31/2 - 10/37 =
(7) 15/17 X 99/45 =
(8) 12/1 : 1/38 =

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