pan align="justify">? 2 + 2) 309 = 4 ? 2 +5
(? 2 + 2) 310 = 2 ? 2 +3 ? +3
(? 2 + 2) 311 = 5 ? 2 + ? +3
(? 2 + 2) 312 = ? 2 +3 ? +5
(? 2 + 2) 313 = 6 ? 2 +2 ?
(? 2 + 2) 314 = 6 ? 2 +3 ? +5
(? 2 + 2) 315 = 4 ? 2 +4 ?
(? 2 + 2) 316 = 4 ? 2 +3
(? 2 + 2) 317 = 3 ? +6
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