Arithmetic Operator Puzzles

#4177: 9 _ 2 _ 6 _ 5 = 15 hard #4178: 9 _ 2 _ 6 _ 6 = 9 medium #4179: 9 _ 2 _ 6 _ 6 = -3 medium #4180: 9 _ 2 _ 6 _ 7 = -4 medium #4181: 9 _ 2 _ 6 _ 8 = 11 hard #4182: 9 _ 2 _ 6 _ 8 = -5 medium #4183: 9 _ 2 _ 6 _ 9 = -6 medium #4184: 9 _ 2 _ 6 _ 8 = 19 hard #4185: 9 _ 2 _ 6 _ 9 = 18 hard #4186: 9 _ 2 _ 6 _ 8 = 6 easy #4187: 9 _ 2 _ 7 _ 7 = 19 hard #4188: 9 _ 2 _ 7 _ 7 = 17 hard #4189: 9 _ 2 _ 8 _ 4 = 10 medium #4190: 9 _ 2 _ 8 _ 4 = 8 medium #4191: 9 _ 2 _ 8 _ 4 = 20 hard #4192: 9 _ 2 _ 8 _ 8 = 19 hard #4193: 9 _ 2 _ 8 _ 2 = 14 hard #4194: 9 _ 2 _ 8 _ 4 = 16 hard #4195: 9 _ 2 _ 8 _ 2 = 18 hard #4196: 9 _ 2 _ 8 _ 6 = 6 easy #4197: 9 _ 2 _ 8 _ 9 = 4 easy #4198: 9 _ 2 _ 9 _ 3 = 3 easy #4199: 9 _ 2 _ 9 _ 9 = 19 hard #4200: 9 _ 2 _ 9 _ 9 = 17 hard #4201: 9 _ 2 _ 9 _ 4 = 8 easy #4202: 9 _ 2 _ 9 _ 5 = 10 medium #4203: 9 _ 2 _ 9 _ 7 = 14 hard #4204: 9 _ 2 _ 9 _ 8 = 16 hard #4205: 9 _ 2 _ 9 _ 8 = 4 easy #4206: 9 _ 3 _ 2 _ 4 = 15 hard #4207: 9 _ 3 _ 2 _ 4 = 3 easy #4208: 9 _ 3 _ 2 _ 8 = 19 hard #4209: 9 _ 3 _ 2 _ 3 = -3 medium #4210: 9 _ 3 _ 2 _ 4 = -5 medium #4211: 9 _ 3 _ 2 _ 5 = -7 hard #4212: 9 _ 3 _ 2 _ 6 = -9 hard #4213: 9 _ 3 _ 2 _ 3 = 3 easy #4214: 9 _ 3 _ 2 _ 4 = 2 easy #4215: 9 _ 3 _ 2 _ 5 = 11 hard #4216: 9 _ 3 _ 2 _ 5 = 1 easy #4217: 9 _ 3 _ 2 _ 6 = 12 hard #4218: 9 _ 3 _ 2 _ 6 = 1 easy #4219: 9 _ 3 _ 2 _ 7 = -1 easy #4220: 9 _ 3 _ 2 _ 8 = 14 hard #4221: 9 _ 3 _ 2 _ 8 = -2 medium #4222: 9 _ 3 _ 2 _ 9 = 15 hard #4223: 9 _ 3 _ 2 _ 9 = -3 medium #4224: 9 _ 3 _ 3 _ 9 = 8 medium