1、7= 57+15= 77+51=67+16= 712= 22+8= 121=4548= 25+83= 58+39= 8628=82+66= 7840= 54+18= 27+88=95+36= 8579= 29+42= 99+11=7239= 49+16= 5419= 89+5=9+14= 8477= 45+35= 94623+78= 6785= 40+66= 33+56=5+67= 34+28= 92+55= 13+63=39+44= 15+27= 75+49= 31+9+626+95+6= 8188= 6437= 58+22625= 58+48= 6424= 463114= 35+77= 9
2、864= 5648888= 5045= 2818= 92213= 26= 34+29= 9419=5-21= 66+30= 67+65= 68-22=9-23= 55-20= 50-54= 45-552-64= 77-89= 88-59= 79-26=25+53= 36+58= 79+52= 74-45=25+63= 26-26= 45+34= 85-896-96= 75-59= 49-61= 26+56+23= 25+58= 54-53= 26+59=5-25= 36-66= 49+56= 54+649-58= 85-85= 79-73= 44-427+86= 77-89= 98-98= 4
3、1-42=9-10= 79-12= 99-89= 99-58=88-79= 55-45= 56-58= 49-555-83= 82-89= 72-57= 84-86+56= 19+58= 45+52= 72-59-70= 57+50= 82+60= 85-88-54= 87-58= 76-21= 89-926+59-25= 82+19= 46-525+46= 16+72= 78+46= 50-559-46= 58+29= 85-88= 66-66+32= 55+55= 84+65= 32+59-78= 65-57= 97-60= 78-751-56= 23+29= 39+18= 74-845-
4、85= 59-40= 68-55= 44-44=53-53= 88-60= 79-79= 46-475-75= 60-66= 80-88= 50-572-76= 81-99= 16+57= 56+52=67-58= 82-87= 76-73= 49-464-54= 78-79= 99-98= 82-862-58= 46+55= 57-75= 86-846-55= 65+33= 97-65= 82-894-94= 82= 29+29= 77-24=3+51= 60-66= 18+76= 56-30=9+54= 10+94= 76+46= 53-86+45= 49-46= 82-84= 78+51=5+22= 35+30= 25+65= 15+68=4+52= 43+21= 42+51= 41+45=3+91= 32+51= 37+15= 86+55=71+55= 46+85= 78+80= 84+46=4-30= 92+18= 72+73= 49+46+57= 47+53= 48-20= 72-57+5= 75+50= 84+60= 82-84= 72+50= 88-56= 19+840+48= 85-40= 79-75= 48+860-67= 45+86= 49+88= 76+5