Arithmetic Operator Puzzles

#2401: 5 _ 5 _ 6 _ 3 = 15 medium #2402: 5 _ 5 _ 6 _ 3 = -5 easy #2403: 5 _ 5 _ 8 _ 4 = 15 hard #2404: 5 _ 5 _ 8 _ 4 = -5 medium #2405: 5 _ 5 _ 8 _ 2 = 17 hard #2406: 5 _ 5 _ 9 _ 3 = 20 hard #2407: 5 _ 5 _ 9 _ 2 = 19 hard #2408: 5 _ 6 _ 2 _ 3 = 9 easy #2409: 5 _ 6 _ 2 _ 4 = 8 easy #2410: 5 _ 6 _ 2 _ 3 = 1 easy #2411: 5 _ 6 _ 2 _ 4 = 2 easy #2412: 5 _ 6 _ 2 _ 4 = 15 medium #2413: 5 _ 6 _ 2 _ 2 = 17 hard #2414: 5 _ 6 _ 2 _ 2 = 13 medium #2415: 5 _ 6 _ 2 _ 3 = 18 hard #2416: 5 _ 6 _ 2 _ 4 = 11 easy #2417: 5 _ 6 _ 2 _ 5 = 10 easy #2418: 5 _ 6 _ 2 _ 6 = 9 easy #2419: 5 _ 6 _ 2 _ 8 = 7 easy #2420: 5 _ 6 _ 2 _ 9 = 15 hard #2421: 5 _ 6 _ 3 _ 2 = 14 medium #2422: 5 _ 6 _ 3 _ 9 = 7 medium #2423: 5 _ 6 _ 3 _ 4 = 13 medium #2424: 5 _ 6 _ 3 _ 7 = 19 hard #2425: 5 _ 6 _ 3 _ 2 = -4 easy #2426: 5 _ 6 _ 3 _ 4 = -3 easy #2427: 5 _ 6 _ 3 _ 5 = -5 easy #2428: 5 _ 6 _ 3 _ 7 = -9 medium #2429: 5 _ 6 _ 3 _ 9 = 10 medium #2430: 5 _ 6 _ 3 _ 1 = 11 easy #2431: 5 _ 6 _ 3 _ 2 = 8 easy #2432: 5 _ 6 _ 3 _ 2 = 20 hard #2433: 5 _ 6 _ 3 _ 3 = 13 medium #2434: 5 _ 6 _ 3 _ 3 = 7 easy #2435: 5 _ 6 _ 3 _ 4 = 14 medium #2436: 5 _ 6 _ 3 _ 5 = 5 easy #2437: 5 _ 6 _ 3 _ 6 = 16 medium #2438: 5 _ 6 _ 3 _ 6 = 4 easy #2439: 5 _ 6 _ 3 _ 7 = 17 hard #2440: 5 _ 6 _ 3 _ 8 = 18 hard #2441: 5 _ 6 _ 3 _ 8 = 2 easy #2442: 5 _ 6 _ 3 _ 9 = 19 hard #2443: 5 _ 6 _ 3 _ 9 = 1 easy #2444: 5 _ 6 _ 3 _ 8 = 20 hard #2445: 5 _ 6 _ 4 _ 3 = 13 medium #2446: 5 _ 6 _ 4 _ 8 = 8 medium #2447: 5 _ 6 _ 4 _ 2 = 8 easy #2448: 5 _ 6 _ 4 _ 6 = 14 medium