Arithmetic Operator Puzzles

#2785: 6 _ 3 _ 8 _ 7 = 9 medium #2786: 6 _ 3 _ 8 _ 9 = 7 medium #2787: 6 _ 3 _ 9 _ 3 = 7 medium #2788: 6 _ 3 _ 9 _ 6 = 4 easy #2789: 6 _ 3 _ 9 _ 9 = 19 hard #2790: 6 _ 3 _ 9 _ 9 = 17 hard #2791: 6 _ 3 _ 9 _ 1 = 3 easy #2792: 6 _ 3 _ 9 _ 2 = 1 easy #2793: 6 _ 3 _ 9 _ 4 = 6 medium #2794: 6 _ 3 _ 9 _ 5 = -3 medium #2795: 6 _ 3 _ 9 _ 5 = 10 medium #2796: 6 _ 3 _ 9 _ 6 = -4 medium #2797: 6 _ 3 _ 9 _ 7 = 9 medium #2798: 6 _ 3 _ 9 _ 7 = -5 medium #2799: 6 _ 3 _ 9 _ 7 = 14 hard #2800: 6 _ 3 _ 9 _ 8 = -6 medium #2801: 6 _ 3 _ 9 _ 8 = 16 hard #2802: 6 _ 3 _ 9 _ 9 = 11 hard #2803: 6 _ 3 _ 9 _ 9 = -7 hard #2804: 6 _ 4 _ 2 _ 8 = 7 easy #2805: 6 _ 4 _ 2 _ 3 = 12 medium #2806: 6 _ 4 _ 2 _ 4 = 14 medium #2807: 6 _ 4 _ 2 _ 5 = 16 medium #2808: 6 _ 4 _ 2 _ 7 = 20 hard #2809: 6 _ 4 _ 2 _ 8 = 5 easy #2810: 6 _ 4 _ 2 _ 4 = -2 easy #2811: 6 _ 4 _ 2 _ 5 = -4 easy #2812: 6 _ 4 _ 2 _ 7 = -8 medium #2813: 6 _ 4 _ 2 _ 1 = 2 easy #2814: 6 _ 4 _ 2 _ 3 = 6 easy #2815: 6 _ 4 _ 2 _ 4 = 7 easy #2816: 6 _ 4 _ 2 _ 4 = -1 easy #2817: 6 _ 4 _ 2 _ 5 = 8 easy #2818: 6 _ 4 _ 2 _ 5 = -2 easy #2819: 6 _ 4 _ 2 _ 5 = 15 medium #2820: 6 _ 4 _ 2 _ 6 = 9 easy #2821: 6 _ 4 _ 2 _ 6 = -3 easy #2822: 6 _ 4 _ 2 _ 8 = 11 medium #2823: 6 _ 4 _ 2 _ 8 = -5 medium #2824: 6 _ 4 _ 2 _ 9 = 12 hard #2825: 6 _ 4 _ 2 _ 9 = -6 medium #2826: 6 _ 4 _ 3 _ 2 = 12 medium #2827: 6 _ 4 _ 3 _ 6 = 8 easy #2828: 6 _ 4 _ 3 _ 6 = 4 easy #2829: 6 _ 4 _ 3 _ 6 = -2 easy #2830: 6 _ 4 _ 3 _ 9 = -6 medium #2831: 6 _ 4 _ 3 _ 8 = 9 easy #2832: 6 _ 4 _ 3 _ 1 = 9 easy