文档介绍：27×16=39×66=17×51=43×22=175÷5=460÷8=8405÷7=9160÷4=3664÷6=2360÷4=18×34=19×25=27×32=45×12=33×12=32×69=23×31=142×23=32×37=45×12=114×25=433×36=25×43=302×24=59×27=420÷8=793÷8=816÷4=217×7=16×14=38×62=616÷7=0×125=179÷8=74×53=75×24=0÷155=834÷8=32×29=46×53=13×13=525÷5=738÷2=23×41=18×17=62×27=297÷3=28×56=28×47=47×31=75×28=12×123=36×58=219÷3=139÷4=240÷3=49×68=791÷7=64×67=7×123=46×79=76×22=518÷14=786×6=88×66=61×29=98×23=77×23=35×7=179÷8=99×33=59×12= 208÷3=                   110÷4=                     455÷5=     412÷4=      840÷7=                     35×45=     43×21=                  33×33=   489÷3=     -=                509÷5=                     65×34=     623÷7=                 416÷8=                     73×69=     82×24=      10-=                    7-=782÷6 =       69×24 =463÷3=              506÷7 = 78+266 = 920-538 = 53×55 = 72×87 = 500÷6 =37×29=         +=           16-= 46×80=         13+=   36×18= 774÷8=                  508÷2=             370÷5= 19×47=               900÷5=              23×34=   392÷4=             360×5=            32×68= 207÷9=                63×36=      26×38=  770÷5=                 696÷2=            882÷4=809÷8=                56×79=              64×28=   820÷3=   630÷6=            458÷4=   4+=   -=     10-=      -5=  +=  -=        +=      +=+=  -=    -=      += -=  -=    -=       += -=  -=  +=       += +=  += +=        += +=  +=  -=      -= +=   -=        -=        -= +=   +=       +=         += -=             9-=    +3=           +4=             +=         +9=      -=            +8=           -=    -=  +4=           +=     -=             +16=   -= 17×28=             21×32=