Arithmetic Operator Puzzles

#2737: 6 _ 3 _ 4 _ 8 = 4 easy #2738: 6 _ 3 _ 5 _ 5 = 17 hard #2739: 6 _ 3 _ 5 _ 9 = 10 medium #2740: 6 _ 3 _ 5 _ 2 = -8 medium #2741: 6 _ 3 _ 5 _ 1 = 11 easy #2742: 6 _ 3 _ 5 _ 2 = 20 hard #2743: 6 _ 3 _ 5 _ 3 = 13 medium #2744: 6 _ 3 _ 5 _ 4 = 14 medium #2745: 6 _ 3 _ 5 _ 4 = 6 easy #2746: 6 _ 3 _ 5 _ 5 = 15 medium #2747: 6 _ 3 _ 5 _ 5 = 5 easy #2748: 6 _ 3 _ 5 _ 6 = 16 medium #2749: 6 _ 3 _ 5 _ 7 = 17 hard #2750: 6 _ 3 _ 5 _ 7 = 3 easy #2751: 6 _ 3 _ 5 _ 8 = 18 hard #2752: 6 _ 3 _ 5 _ 8 = 2 easy #2753: 6 _ 3 _ 5 _ 9 = 19 hard #2754: 6 _ 3 _ 5 _ 9 = 1 easy #2755: 6 _ 3 _ 6 _ 9 = 8 medium #2756: 6 _ 3 _ 6 _ 8 = 10 medium #2757: 6 _ 3 _ 6 _ 9 = 4 easy #2758: 6 _ 3 _ 6 _ 8 = 2 easy #2759: 6 _ 3 _ 6 _ 6 = 19 hard #2760: 6 _ 3 _ 6 _ 3 = 16 medium #2761: 6 _ 3 _ 6 _ 6 = 17 hard #2762: 6 _ 3 _ 6 _ 5 = 15 medium #2763: 6 _ 3 _ 6 _ 4 = 3 easy #2764: 6 _ 3 _ 7 _ 7 = 19 hard #2765: 6 _ 3 _ 7 _ 9 = 14 hard #2766: 6 _ 3 _ 7 _ 1 = 13 medium #2767: 6 _ 3 _ 7 _ 3 = 17 hard #2768: 6 _ 3 _ 7 _ 3 = 11 medium #2769: 6 _ 3 _ 7 _ 4 = 18 hard #2770: 6 _ 3 _ 7 _ 4 = 10 medium #2771: 6 _ 3 _ 7 _ 5 = 19 hard #2772: 6 _ 3 _ 7 _ 5 = 9 easy #2773: 6 _ 3 _ 7 _ 6 = 20 hard #2774: 6 _ 3 _ 7 _ 7 = 7 easy #2775: 6 _ 3 _ 7 _ 8 = 6 easy #2776: 6 _ 3 _ 8 _ 2 = -6 medium #2777: 6 _ 3 _ 8 _ 6 = 2 easy #2778: 6 _ 3 _ 8 _ 4 = 16 hard #2779: 6 _ 3 _ 8 _ 8 = 17 hard #2780: 6 _ 3 _ 8 _ 9 = 16 hard #2781: 6 _ 3 _ 8 _ 4 = 9 easy #2782: 6 _ 3 _ 8 _ 1 = 15 hard #2783: 6 _ 3 _ 8 _ 3 = 19 hard #2784: 6 _ 3 _ 8 _ 5 = 11 medium