一年级数学上册第5单元6_10的认识和加减法《8和9》创新练习新人教版.doc

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18和9 1计算。4+3= 8-2= 9-5=4+5= 3+6= 8-3=2(1)一共有8只 。还剩多少只?一共有只 ,飞走了只,要解决的问题是“还剩多少只” ,用法计算。=(只)(2)树上原来有只小鸟,飞来了只。一共有几只?+=(只)3(1)还剩几只?=(只)2(2)=(只)4一共有9人。树后还藏着几人?=(人)5看图提出问题并解答。_?=(只)6仔细看图,先提出数学问题,再列式解答。3答案17 6 4 9 9 52(1)8 5 减 853 (2)4 4 4483(1)936 (2)45949455房子里有几只兔子 8356答案不唯一,如一共有几棵树? 112(棵)

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