文档介绍：细心整理
25+19= 28+26= 35-18= 40-17=
25+24= 44-20= 38+6= 37+48=
37+12-18= 36+17= 38+14= 34+17=
37-3-9= 37+20-11= 36+29= 36+14=
36-3-12= 36+11= 36-11+31= 35+35=
35-19= 35-28= 35+28= 34+18=
33+13= 33+17= 33+10+2= 33-11=
细心整理
33-9= 32+15= 31-5= 29+21=
32+11= 32+17= 32-12= 32-21=
31+18= 30-11= 31+9= 31-19=
36+25= 30-19= 36+16= 30+18=
29-18= 29+11= 25-9= 29+20=
28+24= 27+19= 27+14= 26-2=
28-13= 28+17= 28+23= 27+5=
55-15= 27+14= 27+13= 27+12=
21-15= 26-17= 26+14= 26+15=
25+24= 25-16= 25-20= 25+28=
24+18= 23+27= 22-17= 20+29=
24-16= 24+48= 24+48= 24+57=
细心整理
23+57= 22+19= 22+11= 22+28=
28+26= 25+17= 20-16= 20-13=
19+5= 19+19= 19+13= 19+17=
19+23= 18+23= 17+29= 67-33=
19+29= 19+31= 18+12= 18+19=
68-27= 18+31= 55-17= 17+33=
17+26= 17+21= 17+17= 57-29=
16+33= 16+30= 16+29= 16+26=
16+19= 56-17= 15+18= 24+27=
16+15= 16+29= 66-18= 46-27=
15+35