文档介绍：12+29-19=77-19-16=63-23+28=69+10-36=88-34+18=-26+18=27+12-28=85-36+27=21+82-60=67+27-37=12+79-62=36+34-14=63-17+15=51-27+28=73+12-71=75-36+10=51-42+53=21+82-60=72-54+12=77-65-6=44-5+12=65-39-15=71-52+36=100-76+22=62-18+24=75-24+26=72-45+32=54+21+18=75+24-23=54-21-18=53-29+19=32+45-38=67-47+22=35+12-28=81-45+36=21+82+17=86-12-15=24-16+40=83-27+10=57-33+31=63+12-42=65-33-18=36-27+9=53-37+15=68-65-3=54-52+17=92-6+11=67+27-37=88-51-24=42-37+54=33-17+15=76-63+1=77-64+22=75-36+10=63+18+11=12+30-23=72-54+12=65+15-47=56-42-8=65-36-15=77-34+55=56+43-90=62-18+24=43-29+13=23+65+10=54+21+18=35-28-28=98-76-14=53-29+19=77-38+42=63-48+26=35+12-28=60-34+35=63+17-28=86-12-15=17+27-10=63-28+17=57-33+31=55+38-15=100-70-23=36-27+9=54-41+36=12+29-19=77-19-16=99-88+77=69+10-36=88-34+18=75+15-30=27+12-28=85-36+27=12+79-62=36+34-14=76-63+1=51-27+28=73+12-71=63+18+11=51-42+53=21+82-60=65+15-47=77-65-6=44-5+12=77-34+55=71-52+36=100-76+22=43-29+13=75-24+26=72-45+32=35-28-28=75+24-23=54-21-18=77-38+42=32+45-38=67-47+22=60-34+35=81-45+36=21+82+17=17+27-10=24-16+40=83-27+10=55+38-15=63+12-42=54+21-18=54-41+36=53-37+15=65-33-18=99-88+77=63-23+28=68-65-3=75+15-30=48-26+18=54-52+17=92-6+11=21+82-60=88-51-24=42-37+54=77-64+22=36-27+9=53-37+15=12+29-19=77-19-16=63-23-28=69+10-36=88-34-18=48-26+18=27+12-28=85-36+27=83-27+10=67-27-37=12+79-62=54-21-18=33-17+15=51-27+28=65-33-18=75-36-10=51-42+53=68-65-3=72-54+12=7