Arithmetic Operator Puzzles

#2257: 5 _ 3 _ 6 _ 1 = 11 easy #2258: 5 _ 3 _ 6 _ 2 = 8 easy #2259: 5 _ 3 _ 6 _ 3 = 7 easy #2260: 5 _ 3 _ 6 _ 4 = 14 medium #2261: 5 _ 3 _ 6 _ 5 = 15 medium #2262: 5 _ 3 _ 6 _ 5 = 5 easy #2263: 5 _ 3 _ 6 _ 5 = 2 easy #2264: 5 _ 3 _ 6 _ 6 = 4 easy #2265: 5 _ 3 _ 6 _ 7 = 17 hard #2266: 5 _ 3 _ 6 _ 8 = 18 hard #2267: 5 _ 3 _ 6 _ 8 = 2 easy #2268: 5 _ 3 _ 6 _ 9 = 19 hard #2269: 5 _ 3 _ 7 _ 7 = 14 medium #2270: 5 _ 3 _ 8 _ 2 = 17 hard #2271: 5 _ 3 _ 8 _ 6 = 9 medium #2272: 5 _ 3 _ 8 _ 2 = -7 medium #2273: 5 _ 3 _ 8 _ 4 = -1 easy #2274: 5 _ 3 _ 8 _ 2 = 19 hard #2275: 5 _ 3 _ 8 _ 4 = 17 hard #2276: 5 _ 3 _ 8 _ 8 = 16 hard #2277: 5 _ 3 _ 8 _ 2 = 11 medium #2278: 5 _ 3 _ 8 _ 4 = 13 hard #2279: 5 _ 3 _ 8 _ 8 = 14 hard #2280: 5 _ 3 _ 8 _ 6 = 20 hard #2281: 5 _ 3 _ 9 _ 3 = 6 medium #2282: 5 _ 3 _ 9 _ 6 = 7 medium #2283: 5 _ 3 _ 9 _ 3 = 4 easy #2284: 5 _ 3 _ 9 _ 6 = 3 easy #2285: 5 _ 3 _ 9 _ 9 = 16 hard #2286: 5 _ 3 _ 9 _ 9 = 14 hard #2287: 5 _ 3 _ 9 _ 6 = 10 medium #2288: 5 _ 3 _ 9 _ 1 = 14 hard #2289: 5 _ 3 _ 9 _ 2 = 17 hard #2290: 5 _ 3 _ 9 _ 4 = 19 hard #2291: 5 _ 3 _ 9 _ 4 = 11 hard #2292: 5 _ 3 _ 9 _ 5 = 20 hard #2293: 5 _ 3 _ 9 _ 5 = 10 medium #2294: 5 _ 3 _ 9 _ 5 = 3 easy #2295: 5 _ 3 _ 9 _ 6 = 9 medium #2296: 5 _ 3 _ 9 _ 7 = 8 medium #2297: 5 _ 3 _ 9 _ 9 = 6 medium #2298: 5 _ 4 _ 2 _ 8 = 6 easy #2299: 5 _ 4 _ 2 _ 3 = 11 easy #2300: 5 _ 4 _ 2 _ 4 = 13 easy #2301: 5 _ 4 _ 2 _ 7 = 19 hard #2302: 5 _ 4 _ 2 _ 3 = -1 easy #2303: 5 _ 4 _ 2 _ 4 = -3 easy #2304: 5 _ 4 _ 2 _ 5 = -5 easy