Arithmetic Operator Puzzles

#337: 1 _ 6 _ 9 _ 3 = 9 medium #338: 1 _ 6 _ 9 _ 9 = 5 easy #339: 1 _ 6 _ 9 _ 3 = 2 easy #340: 1 _ 6 _ 9 _ 2 = 3 easy #341: 1 _ 6 _ 9 _ 4 = 6 easy #342: 1 _ 7 _ 2 _ 2 = 6 easy #343: 1 _ 7 _ 3 _ 3 = 6 easy #344: 1 _ 7 _ 3 _ 6 = 14 medium #345: 1 _ 7 _ 4 _ 8 = 15 hard #346: 1 _ 7 _ 4 _ 4 = 6 easy #347: 1 _ 7 _ 4 _ 8 = 14 medium #348: 1 _ 7 _ 5 _ 5 = 6 easy #349: 1 _ 7 _ 6 _ 3 = 15 hard #350: 1 _ 7 _ 6 _ 2 = 10 medium #351: 1 _ 7 _ 6 _ 3 = 9 easy #352: 1 _ 7 _ 6 _ 3 = 14 medium #353: 1 _ 7 _ 7 _ 7 = 6 easy #354: 1 _ 7 _ 8 _ 4 = 15 hard #355: 1 _ 7 _ 8 _ 2 = 11 medium #356: 1 _ 7 _ 8 _ 4 = 9 medium #357: 1 _ 7 _ 8 _ 2 = 3 easy #358: 1 _ 7 _ 8 _ 4 = 5 easy #359: 1 _ 7 _ 8 _ 8 = 6 easy #360: 1 _ 7 _ 8 _ 4 = 14 medium #361: 1 _ 7 _ 9 _ 3 = 10 medium #362: 1 _ 7 _ 9 _ 3 = 4 easy #363: 1 _ 7 _ 9 _ 9 = 6 medium #364: 1 _ 8 _ 2 _ 4 = 5 easy #365: 1 _ 8 _ 2 _ 4 = -3 easy #366: 1 _ 8 _ 2 _ 4 = 4 easy #367: 1 _ 8 _ 2 _ 1 = 3 easy #368: 1 _ 8 _ 2 _ 2 = 6 easy #369: 1 _ 8 _ 2 _ 3 = 1 easy #370: 1 _ 8 _ 2 _ 3 = 12 medium #371: 1 _ 8 _ 2 _ 4 = 8 medium #372: 1 _ 8 _ 2 _ 5 = 9 medium #373: 1 _ 8 _ 2 _ 5 = 20 hard #374: 1 _ 8 _ 2 _ 6 = -2 easy #375: 1 _ 8 _ 2 _ 7 = 11 medium #376: 1 _ 8 _ 2 _ 7 = -3 easy #377: 1 _ 8 _ 2 _ 8 = 12 medium #378: 1 _ 8 _ 2 _ 8 = -4 medium #379: 1 _ 8 _ 2 _ 9 = 13 hard #380: 1 _ 8 _ 2 _ 9 = -5 medium #381: 1 _ 8 _ 3 _ 4 = -5 medium #382: 1 _ 8 _ 3 _ 6 = -3 easy #383: 1 _ 8 _ 3 _ 3 = 7 easy #384: 1 _ 8 _ 3 _ 2 = 12 medium