Arithmetic Operator Puzzles

#4561: 9 _ 8 _ 6 _ 6 = 6 medium #4562: 9 _ 8 _ 6 _ 7 = 19 hard #4563: 9 _ 8 _ 6 _ 7 = 5 easy #4564: 9 _ 8 _ 6 _ 8 = 20 hard #4565: 9 _ 8 _ 6 _ 8 = 4 easy #4566: 9 _ 8 _ 6 _ 9 = 3 easy #4567: 9 _ 8 _ 7 _ 4 = -5 medium #4568: 9 _ 8 _ 8 _ 4 = -7 hard #4569: 9 _ 8 _ 9 _ 4 = -9 hard #4570: 9 _ 8 _ 9 _ 6 = -3 medium #4571: 9 _ 8 _ 9 _ 2 = 16 hard #4572: 9 _ 8 _ 9 _ 2 = 4 easy #4573: 9 _ 8 _ 9 _ 4 = 2 easy #4574: 9 _ 9 _ 2 _ 3 = 15 hard #4575: 9 _ 9 _ 2 _ 3 = 3 easy #4576: 9 _ 9 _ 2 _ 4 = -9 hard #4577: 9 _ 9 _ 2 _ 3 = 7 medium #4578: 9 _ 9 _ 2 _ 4 = 9 medium #4579: 9 _ 9 _ 2 _ 6 = 13 hard #4580: 9 _ 9 _ 2 _ 7 = 15 hard #4581: 9 _ 9 _ 2 _ 8 = 17 hard #4582: 9 _ 9 _ 2 _ 9 = 19 hard #4583: 9 _ 9 _ 2 _ 4 = -7 hard #4584: 9 _ 9 _ 2 _ 5 = -9 hard #4585: 9 _ 9 _ 2 _ 6 = 3 easy #4586: 9 _ 9 _ 2 _ 8 = 4 easy #4587: 9 _ 9 _ 3 _ 2 = 15 hard #4588: 9 _ 9 _ 3 _ 2 = 3 easy #4589: 9 _ 9 _ 3 _ 4 = -3 medium #4590: 9 _ 9 _ 3 _ 5 = -6 medium #4591: 9 _ 9 _ 3 _ 7 = 20 hard #4592: 9 _ 9 _ 3 _ 8 = 19 hard #4593: 9 _ 9 _ 3 _ 9 = 18 hard #4594: 9 _ 9 _ 3 _ 2 = 7 medium #4595: 9 _ 9 _ 3 _ 4 = 13 hard #4596: 9 _ 9 _ 3 _ 6 = 19 hard #4597: 9 _ 9 _ 3 _ 3 = -8 hard #4598: 9 _ 9 _ 3 _ 6 = 2 easy #4599: 9 _ 9 _ 4 _ 6 = 15 hard #4600: 9 _ 9 _ 4 _ 2 = -9 hard #4601: 9 _ 9 _ 4 _ 3 = -3 medium #4602: 9 _ 9 _ 4 _ 8 = -9 hard #4603: 9 _ 9 _ 4 _ 2 = 9 medium #4604: 9 _ 9 _ 4 _ 3 = 13 hard #4605: 9 _ 9 _ 4 _ 2 = -7 hard #4606: 9 _ 9 _ 4 _ 8 = 2 easy #4607: 9 _ 9 _ 5 _ 3 = -6 medium #4608: 9 _ 9 _ 5 _ 2 = -9 hard