Arithmetic Operator Puzzles

#3745: 8 _ 4 _ 2 _ 5 = 18 hard #3746: 8 _ 4 _ 2 _ 8 = 7 easy #3747: 8 _ 4 _ 2 _ 3 = 2 easy #3748: 8 _ 4 _ 2 _ 5 = -2 easy #3749: 8 _ 4 _ 2 _ 3 = 8 medium #3750: 8 _ 4 _ 2 _ 5 = 12 medium #3751: 8 _ 4 _ 2 _ 6 = 14 hard #3752: 8 _ 4 _ 2 _ 7 = 16 hard #3753: 8 _ 4 _ 2 _ 9 = 20 hard #3754: 8 _ 4 _ 2 _ 3 = -4 medium #3755: 8 _ 4 _ 2 _ 4 = -6 medium #3756: 8 _ 4 _ 2 _ 5 = -8 medium #3757: 8 _ 4 _ 2 _ 3 = 12 medium #3758: 8 _ 4 _ 2 _ 4 = 1 easy #3759: 8 _ 4 _ 2 _ 5 = 20 hard #3760: 8 _ 4 _ 3 _ 2 = 14 hard #3761: 8 _ 4 _ 3 _ 6 = 10 medium #3762: 8 _ 4 _ 3 _ 2 = 2 easy #3763: 8 _ 4 _ 3 _ 6 = 6 easy #3764: 8 _ 4 _ 3 _ 4 = 14 hard #3765: 8 _ 4 _ 3 _ 6 = 20 hard #3766: 8 _ 4 _ 3 _ 2 = -4 medium #3767: 8 _ 4 _ 3 _ 2 = 4 easy #3768: 8 _ 4 _ 3 _ 2 = 12 medium #3769: 8 _ 4 _ 3 _ 3 = 9 medium #3770: 8 _ 4 _ 3 _ 4 = 10 medium #3771: 8 _ 4 _ 3 _ 4 = 2 easy #3772: 8 _ 4 _ 3 _ 5 = 11 medium #3773: 8 _ 4 _ 3 _ 6 = 12 medium #3774: 8 _ 4 _ 3 _ 7 = -1 easy #3775: 8 _ 4 _ 3 _ 8 = 14 hard #3776: 8 _ 4 _ 3 _ 8 = -2 easy #3777: 8 _ 4 _ 3 _ 9 = 15 hard #3778: 8 _ 4 _ 3 _ 9 = -3 medium #3779: 8 _ 4 _ 3 _ 6 = 4 easy #3780: 8 _ 4 _ 4 _ 8 = 10 medium #3781: 8 _ 4 _ 4 _ 3 = 14 hard #3782: 8 _ 4 _ 4 _ 4 = 18 hard #3783: 8 _ 4 _ 4 _ 2 = 1 easy #3784: 8 _ 4 _ 4 _ 8 = 4 easy #3785: 8 _ 4 _ 5 _ 2 = 18 hard #3786: 8 _ 4 _ 5 _ 2 = -2 easy #3787: 8 _ 4 _ 5 _ 2 = -8 medium #3788: 8 _ 4 _ 5 _ 1 = 11 medium #3789: 8 _ 4 _ 5 _ 2 = 8 medium #3790: 8 _ 4 _ 5 _ 2 = 20 hard #3791: 8 _ 4 _ 5 _ 3 = 13 hard #3792: 8 _ 4 _ 5 _ 3 = 7 easy