Arithmetic Operator Puzzles

#4465: 9 _ 6 _ 5 _ 3 = -1 easy #4466: 9 _ 6 _ 5 _ 2 = 15 hard #4467: 9 _ 6 _ 6 _ 4 = 18 hard #4468: 9 _ 6 _ 6 _ 9 = 13 hard #4469: 9 _ 6 _ 6 _ 9 = 5 easy #4470: 9 _ 6 _ 7 _ 3 = -5 medium #4471: 9 _ 6 _ 8 _ 4 = 12 hard #4472: 9 _ 6 _ 8 _ 3 = -7 hard #4473: 9 _ 6 _ 8 _ 4 = -3 medium #4474: 9 _ 6 _ 8 _ 4 = 6 medium #4475: 9 _ 6 _ 8 _ 1 = 13 hard #4476: 9 _ 6 _ 8 _ 2 = 14 hard #4477: 9 _ 6 _ 8 _ 2 = 10 medium #4478: 9 _ 6 _ 8 _ 2 = 6 easy #4479: 9 _ 6 _ 8 _ 3 = 15 hard #4480: 9 _ 6 _ 8 _ 3 = 9 medium #4481: 9 _ 6 _ 8 _ 4 = 16 hard #4482: 9 _ 6 _ 8 _ 4 = 8 medium #4483: 9 _ 6 _ 8 _ 5 = 17 hard #4484: 9 _ 6 _ 8 _ 5 = 7 medium #4485: 9 _ 6 _ 8 _ 6 = 18 hard #4486: 9 _ 6 _ 8 _ 6 = 2 easy #4487: 9 _ 6 _ 8 _ 7 = 19 hard #4488: 9 _ 6 _ 8 _ 7 = 5 easy #4489: 9 _ 6 _ 8 _ 8 = 20 hard #4490: 9 _ 6 _ 8 _ 9 = 3 easy #4491: 9 _ 6 _ 9 _ 3 = 11 hard #4492: 9 _ 6 _ 9 _ 6 = 13 hard #4493: 9 _ 6 _ 9 _ 3 = 7 medium #4494: 9 _ 6 _ 9 _ 6 = 5 easy #4495: 9 _ 6 _ 9 _ 2 = 12 medium #4496: 9 _ 6 _ 9 _ 2 = 3 easy #4497: 9 _ 6 _ 9 _ 3 = 2 easy #4498: 9 _ 7 _ 2 _ 4 = -5 medium #4499: 9 _ 7 _ 3 _ 6 = -5 medium #4500: 9 _ 7 _ 3 _ 2 = 19 hard #4501: 9 _ 7 _ 3 _ 3 = 18 hard #4502: 9 _ 7 _ 3 _ 5 = 16 hard #4503: 9 _ 7 _ 3 _ 6 = 15 hard #4504: 9 _ 7 _ 3 _ 7 = 14 hard #4505: 9 _ 7 _ 3 _ 9 = 12 hard #4506: 9 _ 7 _ 4 _ 2 = -5 medium #4507: 9 _ 7 _ 4 _ 8 = -5 medium #4508: 9 _ 7 _ 6 _ 3 = -5 medium #4509: 9 _ 7 _ 8 _ 4 = -5 medium #4510: 9 _ 7 _ 9 _ 2 = 14 hard #4511: 9 _ 7 _ 9 _ 7 = 1 easy #4512: 9 _ 8 _ 2 _ 4 = 13 hard