文档介绍：×= ×= 0×= ÷=
÷4= ×= 5÷= ÷=
÷= ÷= -= +=
1÷= ×= ×= ×=
×= ×= -= 10--=
×12= 14×= += ×=
×= ×15= ×= ÷=
×=×16×8=÷=(+)×4=
-=×=÷=÷=
÷=15÷=÷=8×-=
÷=÷=×4÷=(+)×(-)=
(+)×24= += = ()×30=
×25= ×6= ×25+12×=
×32×= 5-= 45×101=
×6= 270÷18= -+= ×÷×=
18×(++)= ―(+)=+= 7÷=
÷= += (+)×12= ÷=
××8= 10-= ++= -=
-+= ×= ÷26= +=
×11-= ×= ×= 0×=
×= ×= 0×= ÷=
÷4= ×= 5÷= ÷= ÷=
×2= ×13= ×= ÷3= 36×=
÷= 5÷6= ÷5= ×18= ÷=
26×= ×2= ×= ÷= 24÷=
×= += ×= ÷8= +=
×15= += ×= 14×= 1÷=
÷4= 3-= -= ÷= ×27=
×3= -= ×8= +3= 6÷=
0÷= ÷= 26×= ÷= 125×8=
6×= ×= ×= +6= ×=
×4= -= ×= 100÷= 88÷=
+= 4×= 12÷= 25×4= 10÷=
÷4= ×= ×60= ×= 12÷=
×8= ×11= 10÷= ×= ÷=
×= ×= 0×= 6÷= ÷=
5×= ×= ÷2= ×= 5-=
÷1= 12÷= 1÷= ×= 28÷=
0×= ×= -= ×= 24×5=
÷= ×= -= 1-= 9÷=
636-198= ÷= 7÷14= 1-+= 1+=
1×= 1÷= 1-= 37×5= 9-=
(+)×24= 72×= 72÷= 24×= -=
1+×= 25×24=     ÷=    12-= ×8=     
27+68= 910-540= 18×40= 910÷70= 78-=
3÷8= 10÷= ×= ÷= ×=
10÷=    ÷10= 410-210= += 7÷=
÷= += (+)×12= ÷= ××8=
10-