39+35-40= 32-23+56= 17+48-37=
26+23+11= 12+15+19= 69-32-17=
57＋23－62＝57＋23－48＝57＋23－72＝
72－57＋18＝72－57＋48＝72－48＋18＝
100-28+35= 23+47-28= 28+24-16=
19+19-24= 22+28+21= 81-32+18=
21+19-8= 39+36-66= 65-39+26=
28+28-28= 34+47-15= 91-19-56=
33+27-18= 15+55-33= 89-39+26=
12+18-17= 29+28+27= 51-16+26=
28+18-27= 89-19+28= 70-17+38=
18+49+28= 22+49-22= 21-8+39=
66-27+19= 38+14+19= 29+27+26=
37-29+16= 45+55-22= 100-65+26=
100-39-45= 24+47-26= 88-66+49=
所需点数：0
