Hard Arithmetic Puzzles

#944: 2 _ 9 _ 2 _ 2 = 17 hard #946: 2 _ 9 _ 3 _ 4 = 14 hard #947: 2 _ 9 _ 3 _ 5 = 17 hard #949: 2 _ 9 _ 3 _ 3 = 19 hard #952: 2 _ 9 _ 3 _ 5 = 11 hard #953: 2 _ 9 _ 3 _ 6 = 12 hard #955: 2 _ 9 _ 3 _ 7 = 13 hard #957: 2 _ 9 _ 3 _ 8 = 14 hard #958: 2 _ 9 _ 3 _ 9 = 15 hard #961: 2 _ 9 _ 4 _ 3 = 14 hard #962: 2 _ 9 _ 4 _ 8 = 20 hard #964: 2 _ 9 _ 4 _ 4 = 17 hard #967: 2 _ 9 _ 5 _ 3 = 17 hard #968: 2 _ 9 _ 5 _ 5 = 19 hard #969: 2 _ 9 _ 5 _ 5 = 17 hard #970: 2 _ 9 _ 5 _ 6 = 15 hard #971: 2 _ 9 _ 6 _ 8 = 14 hard #973: 2 _ 9 _ 6 _ 6 = 19 hard #974: 2 _ 9 _ 6 _ 3 = 16 hard #975: 2 _ 9 _ 6 _ 6 = 17 hard #984: 2 _ 9 _ 6 _ 5 = 15 hard #988: 2 _ 9 _ 6 _ 8 = 11 hard #992: 2 _ 9 _ 7 _ 7 = 19 hard #993: 2 _ 9 _ 7 _ 7 = 17 hard #994: 2 _ 9 _ 7 _ 9 = 14 hard #995: 2 _ 9 _ 8 _ 6 = 14 hard #996: 2 _ 9 _ 8 _ 8 = 19 hard #997: 2 _ 9 _ 8 _ 2 = 14 hard #998: 2 _ 9 _ 8 _ 4 = 16 hard #999: 2 _ 9 _ 8 _ 8 = 17 hard #1000: 2 _ 9 _ 9 _ 9 = 19 hard #1001: 2 _ 9 _ 9 _ 3 = 15 hard #1002: 2 _ 9 _ 9 _ 9 = 17 hard #1033: 3 _ 2 _ 4 _ 8 = 14 hard #1047: 3 _ 2 _ 6 _ 9 = -8 hard #1055: 3 _ 2 _ 6 _ 7 = 16 hard #1056: 3 _ 2 _ 6 _ 8 = 17 hard #1058: 3 _ 2 _ 6 _ 9 = 18 hard #1067: 3 _ 2 _ 8 _ 2 = 14 hard #1069: 3 _ 2 _ 8 _ 3 = 15 hard #1072: 3 _ 2 _ 8 _ 4 = 16 hard #1073: 3 _ 2 _ 8 _ 5 = 17 hard #1075: 3 _ 2 _ 8 _ 6 = 18 hard #1078: 3 _ 2 _ 8 _ 7 = 19 hard #1079: 3 _ 2 _ 8 _ 8 = 20 hard #1090: 3 _ 3 _ 2 _ 9 = 19 hard #1097: 3 _ 3 _ 3 _ 6 = 19 hard #1122: 3 _ 3 _ 6 _ 3 = 19 hard