1139+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=2229+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=28+19+17=56+26-39=67+27-45=51-22+39=33100-17-38=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=85-39+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=4455+76-48=66+11-89=15+26-9=43+21-8=13+19-26=22+18-31=64-55-7=(1)25+37+19=(2)90-37-28=(3)5+94-49=(4)75-38-19=(5)49+24-65=(6)39+45-57=二、计算题1.看谁算得又对又快.(1)78-50+9=(2)72-2-30=(3)35+6-40=(4)47+9-20=(5)17+3+15=(6)75-50+14=55(14)6+