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一年级数学上册第3单元1_5的认识和加减法《加法》作业新人教版.doc

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1加 法一、在里填上“” 、 “口 (3)1=口(4)口2 (6)4” 、 “ (3) =(4) = (5) (6) 二、写出结果相等的算式。(1)5 (2)5 (3)3(4)5 (5)2+2=4 (6)0+5=5三、看图列式计算。4+1=5 2+2=41+2=3 3+2=5四、能力提高在口里填上合适的数。(1)4，5 (2)0，1，2，3，4 (3)1(4)0，1 (5)3，4，5 (6)5

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