2018年小学三年级口算练习题(四十五)
2018年小学三年级口算练习题(四十五)983-962 = 406-368 = 995-944 = 545-502 = 907-847 =
404-345 = 426-395 = 960-865 = 422-414 = 726-627 =
477-388 = 406-400 = 153-128 = 215-202 = 337-278 =
66-21 = 365-346 = 400-381 = 976-927 = 697-693 =
98-76 = 804-790 = 148-120 = 344-262 = 12+53 =
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