Arithmetic Operator Puzzles

#3985: 8 _ 6 _ 9 _ 2 = 10 medium #3986: 8 _ 6 _ 9 _ 2 = 6 easy #3987: 8 _ 6 _ 9 _ 3 = 15 hard #3988: 8 _ 6 _ 9 _ 3 = 9 medium #3989: 8 _ 6 _ 9 _ 3 = 4 easy #3990: 8 _ 6 _ 9 _ 4 = 16 hard #3991: 8 _ 6 _ 9 _ 4 = 8 medium #3992: 8 _ 6 _ 9 _ 4 = 3 easy #3993: 8 _ 6 _ 9 _ 5 = 17 hard #3994: 8 _ 6 _ 9 _ 5 = 7 medium #3995: 8 _ 6 _ 9 _ 6 = 18 hard #3996: 8 _ 6 _ 9 _ 6 = 6 medium #3997: 8 _ 6 _ 9 _ 6 = 2 easy #3998: 8 _ 6 _ 9 _ 7 = 19 hard #3999: 8 _ 6 _ 9 _ 7 = 5 easy #4000: 8 _ 6 _ 9 _ 8 = 20 hard #4001: 8 _ 6 _ 9 _ 8 = 4 easy #4002: 8 _ 7 _ 2 _ 4 = -6 medium #4003: 8 _ 7 _ 2 _ 8 = 20 hard #4004: 8 _ 7 _ 3 _ 6 = -6 medium #4005: 8 _ 7 _ 4 _ 2 = -6 medium #4006: 8 _ 7 _ 4 _ 8 = -6 medium #4007: 8 _ 7 _ 4 _ 1 = 15 hard #4008: 8 _ 7 _ 4 _ 1 = 13 hard #4009: 8 _ 7 _ 4 _ 2 = 16 hard #4010: 8 _ 7 _ 4 _ 2 = 12 medium #4011: 8 _ 7 _ 4 _ 3 = 17 hard #4012: 8 _ 7 _ 4 _ 3 = 11 medium #4013: 8 _ 7 _ 4 _ 4 = 18 hard #4014: 8 _ 7 _ 4 _ 4 = 10 medium #4015: 8 _ 7 _ 4 _ 5 = 19 hard #4016: 8 _ 7 _ 4 _ 5 = 9 medium #4017: 8 _ 7 _ 4 _ 6 = 20 hard #4018: 8 _ 7 _ 4 _ 6 = 8 medium #4019: 8 _ 7 _ 4 _ 7 = 7 easy #4020: 8 _ 7 _ 4 _ 8 = 6 easy #4021: 8 _ 7 _ 4 _ 9 = 5 easy #4022: 8 _ 7 _ 6 _ 3 = -6 medium #4023: 8 _ 7 _ 8 _ 4 = -6 medium #4024: 8 _ 7 _ 8 _ 2 = 14 medium #4025: 8 _ 8 _ 2 _ 4 = 12 medium #4026: 8 _ 8 _ 2 _ 3 = 20 hard #4027: 8 _ 8 _ 2 _ 4 = 4 easy #4028: 8 _ 8 _ 2 _ 5 = 11 medium #4029: 8 _ 8 _ 2 _ 6 = 13 hard #4030: 8 _ 8 _ 2 _ 7 = 15 hard #4031: 8 _ 8 _ 2 _ 8 = 17 hard #4032: 8 _ 8 _ 2 _ 9 = 19 hard