Arithmetic Operator Puzzles

#721: 2 _ 5 _ 3 _ 6 = 5 easy #722: 2 _ 5 _ 3 _ 6 = 20 hard #723: 2 _ 5 _ 4 _ 8 = 12 medium #724: 2 _ 5 _ 4 _ 2 = -8 easy #725: 2 _ 5 _ 4 _ 8 = -8 medium #726: 2 _ 5 _ 4 _ 4 = 11 easy #727: 2 _ 5 _ 4 _ 4 = 9 easy #728: 2 _ 5 _ 4 _ 8 = 5 easy #729: 2 _ 5 _ 4 _ 6 = 15 medium #730: 2 _ 5 _ 4 _ 8 = 20 hard #731: 2 _ 5 _ 5 _ 5 = 11 easy #732: 2 _ 5 _ 5 _ 5 = 9 easy #733: 2 _ 5 _ 6 _ 2 = 17 hard #734: 2 _ 5 _ 6 _ 2 = 13 medium #735: 2 _ 5 _ 6 _ 6 = 11 easy #736: 2 _ 5 _ 6 _ 2 = 7 easy #737: 2 _ 5 _ 6 _ 3 = 8 easy #738: 2 _ 5 _ 6 _ 3 = 20 hard #739: 2 _ 5 _ 6 _ 4 = 15 medium #740: 2 _ 5 _ 6 _ 5 = 12 easy #741: 2 _ 5 _ 6 _ 9 = 15 hard #742: 2 _ 5 _ 7 _ 7 = 9 easy #743: 2 _ 5 _ 7 _ 5 = 14 medium #744: 2 _ 5 _ 8 _ 4 = -8 medium #745: 2 _ 5 _ 8 _ 2 = 14 hard #746: 2 _ 5 _ 8 _ 8 = 11 medium #747: 2 _ 5 _ 8 _ 2 = 6 easy #748: 2 _ 5 _ 8 _ 4 = 8 medium #749: 2 _ 5 _ 8 _ 8 = 9 medium #750: 2 _ 5 _ 8 _ 4 = 20 hard #751: 2 _ 5 _ 9 _ 3 = 17 hard #752: 2 _ 5 _ 9 _ 9 = 11 hard #753: 2 _ 5 _ 9 _ 3 = 7 medium #754: 2 _ 5 _ 9 _ 9 = 9 medium #755: 2 _ 5 _ 9 _ 6 = 15 hard #756: 2 _ 6 _ 2 _ 4 = 5 easy #757: 2 _ 6 _ 2 _ 5 = 17 hard #758: 2 _ 6 _ 2 _ 3 = -2 easy #759: 2 _ 6 _ 2 _ 4 = -1 easy #760: 2 _ 6 _ 2 _ 2 = 13 medium #761: 2 _ 6 _ 2 _ 2 = 11 easy #762: 2 _ 6 _ 2 _ 8 = 3 easy #763: 2 _ 6 _ 2 _ 9 = 6 easy #764: 2 _ 6 _ 3 _ 4 = 10 easy #765: 2 _ 6 _ 3 _ 5 = 12 medium #766: 2 _ 6 _ 3 _ 8 = 18 hard #767: 2 _ 6 _ 3 _ 2 = -7 easy #768: 2 _ 6 _ 3 _ 4 = -6 easy