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25+8= 2+36= 88-9= 36+7= 3+25= 65-7= 55-5= 44-3=,算式分类:说说你是怎样想的?,33,38,43,79,28,50,41,58,抢答:,69,抢答:,80,抢答:,50,抢答:,71,抢答:,34,抢答:,29,抢答:,61,抢答:,38,抢答:,65,抢答:,48,算式接龙:同桌合作,填写卡片,看哪组最快?,30,27,34,30,38,32,算式接龙:,算式接龙:,40,37,44,40,48,42,48,54,46,50,43,46,57,68,65,54,61,72,68,57,65,76,70,59,想一想: 里能填几?,82- = 7,23+ =,3,你知道吗?,53+26=,7,9,