小数加减法口算题.doc

文档介绍：小数加减法口算题
-= += += += +=
-= += -= += -=
+= += -= -= -=
-= += -= += +=
+= += += += +=
+= -= -= += +=
-= += -= += -=
+= -= -= -= +=
-= -= -= -= +=
+= += += -= -=
-= += += += -=
+= += += -= -=
-= -= += += +=
+= -= += += -=
+= += += += +=
-= += += -= +=
-= -= += += -=
+= += += -= -=
+= += += -= -=
+= -= += += -=
×= ×40 = ×= ×= ÷10=
×1000= ÷= ÷= × = ×100=
÷100= ×= ÷ = × = ÷=
×25= ÷= ×= 1000×= ×100=
××= 0÷= 1÷= ×8= ×2=
÷= ×= ÷