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一年级数学上册第3单元1_5的认识和加减法《减法》同步精练新人教版.docx

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1减法1.看图写数。2.看谁算得又对又快！3.看图列式计算。(2)(1)(4)(3)(6)(5) 2参考答案1.2.3.1.4.52.3.5.2.2.3.5.2.2.1.0、0、33.（1）4+1=5 （2）2+3=5 （3） 4-1=3 （4）5-1=4 （5）2+2=4 （6）5-4=1

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