(1)3-8; (2)-4+7; (3)-6-9; (4)8-12;
(5)-15+7; (6)0-2; (7)-5-9+3; (8)10-17+8;
(9)-3-4+19-11; (10)-8+12-16-23; (11)-+-+10;
(12)--+; (13)13-23+1; (14)
(15)-216-157+348+512-678; (16) (17)-4
23+11111712-174-218; (18)+3
(19)12-(-18)+(-7)-15; (20)32);
(21)-(--+(-6); (22)-15214+6+3-2; -++111; 34-125312-88; -40-28-(-19)+(-24)-(--
213+(-6)-(-114)-2;
1113(23)-47; (24)5-; (25)--;
33202
2513(26)-+- (27)3; (28); (2)()7734
(29)(3)(2); (30)(1.2)(1) (31)23-17-(-7)+(-16)
143415
211(32)+(-)-1+ (33)(-+(--+
353 (34)(-4
12311(36) -+-; (37) (38)0.52.75
755427111)-(-5)+(-4)-3 (35)(+-(-+(-- 8248
(39)+(-)++(-)+; (40)9+(-7)+10+(-3)+(-9);
答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)-352 (11) (12)- (13) (15)-191 (16)- (17)-22
23 (14) 341917 (18)-14 (19) 8 (20)-41 (21)
2418145(22)-1 (23)3 (24)- (25)- (26) (27) ; (28);
1271213(29)6; (30)0 (31)-3 (32)- (33)- (34)-6 (35)
5412 (36) -; (37) ; (38) (39)-; (40)0;
35答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)-352 (11) (12)- (13) (15)-191 (16)- (17)-22
23 (14) 341917 (18)-14 (19) 8 (20)-41 (21)
2418145(22)-1 (23)3 (24)- (25)- (26) (27) ; (28);
1271213(29)6; (30)0 (31)-3 (32)- (33)- (34)-6 (35)
5412 (36) -; (37) ; (38) (39)-; (40)0;
35答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)-352 (11) (12)- (13) (15)-191 (16)- (17)-22
23 (14) 341917 (18)-14 (19) 8 (20)-41 (21)
2418145(22)-1 (23)3 (24)- (25)- (26) (27) ; (28);
1271213(29)6; (30)0 (31)-3 (32)- (33)- (34)-6 (35)
5412 (36) -; (37) ; (38) (39)-; (40)0;
35答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)
23 (14) (15)-191 (16)- (17)-341911722 (18)-14 (19) 8 (20)-41 (21) (22)-1 (23)3 (24)- (25)
241218-352 (11) (12)- (13)
51;(29)6; (30)0 (31)-3 (32)- (33)
512123- (34)-6 (35) (36) -; (37) ; (38) (39)-; (40)0;
435- (26) (27) ; (28)47
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