文档介绍：-10x2=-5x7=-5x4=-8=-9=35335•1-=293EIIooII254wII23Q©-8x9=-7x7=00••9••+23=-10+2=密25•1-5•卜5II35II300•1-3II36II32•1-00II£QO4II20©贸Q0II26贸9II盘5II227总IIooCM5+II£(r)+104-2=-5x6=-5x4=-8+3=-8=-9=-7=33•1-00II£•1--8x9=-4x8==-5x6=+16=975•1-3•-5x7=+32=-5x6=-6x8=-9x3=-7+18=-8="=-7=5•1-00II32£QO9II20©=+5x5=-9=-34=+5=+10=-24=-26==+12=・8=-45=-4+25=-4=-22=+7x7=+4x9=+6=-9=iieizii寸IIGO卜€zIIQOZIIsII00•1--9=II卜•1-s€-4=II9•1--214-7=+244-6=+254-5=+32=+12=+48=+4x8=-28=-8=+14=IIwsnII卜X卜zII£0*inzII岁9II卜AII9•I--8=II卜•1--5=-9=-48^8=-564-7=+454-5=+354-5=二年级上加减乘除混合运算(四)“+”、“一”、“X”、“三”==========================+309=+309=+1203=+7=+309==2733・5x303======42