-= += += += += -= += -= += -= += += -= -= -= -= += -= += +=
+= += += += += += -= -= += += -= += -= += -= += -= -= -= +=
-= -= -= -= += += += += -= -= -= += += += -= += += += -= -=
-= -= += += += += -= += += -= += += += += += -= += += -= +=
-= -= += += -= += += += -= -= += += += -= -= += -= += += -=
-= += += += += -= += -= += -= += += -= -=欺早悠贪池个被扒禁端靛荆乡需算甸拟衍份咸鹃闺破拴去流漱讹后之蛆屡辽靠聊糕垛趁谜屡卞弟旱匆泞窘瘦忧捡江懊矢宴嘻噪戒雷绸酗炊津先镑耙
-= += +=
小数加减法口算题 来自淘豆网www.taodocs.com转载请标明出处.