文档介绍：×= ÷= ×= ÷=
÷= ÷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×=
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÷= ×= ×3×4=
+= ×= 2+= ×3=
×= ×4= ÷= 5÷=
÷= ÷= ÷2= ×8=
×= ÷5= 36×= ÷=
12÷9= ÷5= ×18= ÷=
38×= ÷3= ×= ×=
12÷= ×= += ×=
÷8= ×= ×15= ÷=
×= 34×= 1÷= ÷4=
5-= 1-= ×= ×15=
÷3= -= ×8= +3=
6÷= 0÷= ÷= 39×=
×= ÷5= 0÷= -=
×2= ×4= 4÷= 12× =
÷5= 12×= ×3= 8÷=
÷= ×4= 4÷= 27÷ =
÷5= 18×= ×3= 8÷=
÷= ×= ×= ×50=
×3= 5÷= ÷= ×÷=
÷42= ×= ×= 4×=
×14= ÷= ×8= ÷=
×= 6×= ÷4= ×=
÷5= 0÷= -= ×2=
4÷= 12× = ×5= ×=
×= 14×= ×= ÷=
+= 1-= += -=
+= -= += -=
÷= 18×= ×3= ×=
×= ÷= += ×=
15÷12= ×12= ÷5= ×=
28×= ×14= ×= ÷=
24×= ÷= -= ÷=
÷8= += ×= ×=
2×= ×3= ÷= ×=
×20= -= ×36= +2=
6×= ×= ÷= 2÷=
33÷= ×= ×4= ÷=
-= += -= 720÷800=
+= -= 17×300= -=
+= ×= += +=
+= += -= ÷5=
-= += ×100= -=
2+= -= += +=
÷70= +3= += ÷25=
+1= -= += +=
3+= ÷9= -= -5=
×9= -= -= +=
1-= += += +4=
4-= += += +=
23×100= -= -= 1-=
÷40= 53÷100= += ×80=
÷10= += 7×= ×100=
-= -= ×10= 10+=
1-= ×1000= += +=
×100= -= -= 63÷100=
-= += 80÷1000= +=
-= 0×= -= +=
+= 5+= 1-= +=
+= += += 1-=
8-= -= += +=
-= -= -= -=
10+= -