45+15X6=120X25=390-13=3000+200=880-20=250^5X8=36X1仁600-15=48X125=45X14=6X5吃X4=1025-25=32X30=35X8=3X90=30X3+8=336+70=22X30=80-24=32+15=400*20=25X9X4=6X201=420-35^2=28X7=10+12-3=0200-33X3=17X5=25X32=40X50=(80-20+80)-4=3020-1010=4X30=45-15=32X20=70+(100-10X5)=12X50=4500-900=78^2=468+197=360-40=25X8=170+90=45X12=6X80=40X20=23X11=4800-40=6X85=80吃0=80-25=125-25=14X201=69吃3=4700-10=70+45=4200-2200...