文档介绍：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+37=
29+28+27= 51-16+26= 28+18-27= 89-19-28=
100-17-38= 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= 28+19+17=
56+26-39= 67+27-45=
51-22+39= 73-37+38=
29+36-29= 30-13+68=
100-87+48= 66-39+47=
25-18+37= 100-55+45=
100-17-38= 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= 28+19+17= 56+26-39= 67+27-45=
51-22+39= 73-37+38= 29+36-29= 30-13+68=
100-87+48= 66-39+47= 25-18+37= 100-55+45=