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3 . (23 + 9) =	5 . (68 - 54) =	2 . (8 + 27) =	19 . (41 - 38) =
4 . (53 - 37) =	2 . (36 + 6) =	3 . (8 + 17) =	9 . (32 - 21) =
6 . (55 - 39) =	11 . (46 - 39) =	13 . (2 + 3) =	8 . (7 + 0) =
14 . (53 - 47) =	12 . (5 + 3) =	7 . (96 - 83) =	17 . (1 + 4) =
(15 + 17) : 8 =	(83 - 27) : 7 =	(19 + 13) : 4 =	(80 - 45) : 5 =
(66 - 45) : 3 =	(29 + 16) : 9 =	(84 - 12) : 2 =	(48 - 12) : 6 =
(99 - 22) : 7 =	(18 + 24) : 1 =	(28 + 44) : 6 =	(44 + 37) : 9 =
(81 - 16) : 5 =	(38 + 58) : 8 =	(99 - 8) : 7 =	(46 + 24) : 10 =