47-19+21= 91-23+34= 69-8+17= 89-26+8= 95-28+27= 71-24+26= 57+6-28= 53-41+24= 44+25-34= 49-6+67= 64-19+52= 82-17+46= 89-6+31= 57+16-39= 85-14+28= 100-34+47= 37+20+17= 94-27+16= 73+（18-4）= 63-9+14= 67+9-24= 66-9+27= 95-28+13= 81-25+26= 33+15-28= 43-9+28= 97-26+17= 78-6+18= 67-6+15= 89-18+26= 28+54-16= 26+54-27= 91-23+14= 90-34-27= 33-9+16= 63-（32-19）= 44+28-16= 69-8+15= 70-34-12= 95-28-47= 38+30-9= 52+8-24= 60-43-8= 45-23+16= 39-12+28= 28+37-47= 24-10+48= 80-43-19= 50-33+18= 91-24+8= 85-32+43= 44-9+27= 38+17-25= 52+8-24= 91-23+14= 24-10+36= 48-36+14= 39+54-67= 47-19+21= 89-18-9= 28+21+19= 70-34+27= 78-6+21= 63-15+37= 本文来源：https://www.wddqw.com/doc/9e3c2cfe941ea76e58fa04ce.html