笔算练习1、

259+455=

246+258=

144+756 =

860-455=

855-1=

702-355= 750-269= 973-4 = 220-126= 463+4= 804+155= 801-369= 352+4 = 153+436= 500-256= 148+578= 123+587= 296-109= 357+488= 902-3= 624+145= 752-128= 288-156= 409-358=

288+455= 713-355= 804 - 155= 250+349=

123+449=

259+423 =

400-256=

705-1=

750-457= 599-408 = 258+129= 463+256= 599-285= 900-4 = 781-436= 500-198= 455+296= 296+109= 459+488= 902-457= 704-485= 265+566= 706-288= 845-358=

508+455= 815-355= 456+155= 233+528=

402+258=

516+356 =

690-455=

903-1=

946-269= 973-281 = 287-126= 369+4= 806-369= 105+4 = 5-436= 900-256= 198+507= 566-109= 299+488= 806-393= 5+104= 4-566= 216+288= 415-369=

804+156= 455-358= 365+187= 284+457=

978-258=

455+251 =

608-4=

912-198= 308+269= 841-4 = 228-162= 465+378= 621-477= 467+4 = 351+463= 6-256= 512+233= 587-108= 375+488= 845-493=