文档介绍：+= ×2= -=
×= 6×= -=
×= ×100= ×= ÷= ÷7= ÷100=
÷= ×8= ÷=
÷2= ÷28= ÷=
÷= ÷= ÷24=
×= += -=
÷41= 10÷20= 24÷15=
×10= ×= ×=
×1000= ×= ×=
÷= ÷9= ÷=
÷2= ÷= 65÷=
×100= ×8= ÷=
×4= ×= ÷=
×= ×= ×=
÷= 1÷= ×=
÷= 0÷= ×102=
÷= 5×= -=
÷ ÷= 5×=
24×= ×= +=
÷= 5÷= ÷=
÷= ÷5= 7×=
÷= -= ÷=
÷8= ×= 8+=
×30= ×= ×=
9÷6= ÷= ÷=
2÷5= +5= ÷=
÷= ×= +=
8×= ÷= +=
÷28= 10÷20= ÷=
11-= ×= +=
÷= ×100= ×100=
÷2= ÷9= ÷=
16-= ×= ×6=
12÷= ×= ÷=
÷100= += ×=
-= ×= 84÷=
÷= ×16= ÷2=
+= 16-= ÷13=
÷41= ×= ×=
×= ×6= ×=
÷= ÷= 21÷=
×= ÷17= ÷=
×= ÷4= +=
×= ×= ÷4=
÷= ÷= ÷=
÷= ÷= +55=
÷8=