(1)23+41+9= (2)81-(25+35) = (3)25+29-17= (4)63-(40-1)= (5) 55-14-31= (6)27+36+3= (7)30+(23+31)=(8)98-(66+3)= (9) 81+13-44= (10) 62-57+94 (11)64-(39+3)= (12)99-34+18= 0 3)55+6+10= (14)49-23+11= (15)2+56-8= (16)2+(22-16)= (41)68-7-32= (42)97-(7十25)= (43)89-(59-27)= (44)33-9-12= (45)17+(80-47)=(46)77+11-54 (47)99-(33+46)= (48)67+23-78= (49)11+6+16= (50)7+(52-7)= (51)57-5+11= (52)80+4+1= (53)79-19+38= (54)68-8-37= (55)97-60-19= (56)58+6-19= 本文来源：https://www.wddqw.com/doc/db9c7e60a16925c52cc58bd63186bceb19e8ed10.html