四年级下册数学同步练习-8单元1课时 用数对表示位置-苏教版解析
http://t.cn/Ri466E4【精品】第8单元第1课时用数对表示位置(练习及解析)苏教版-四年级数学下册一、填空。1.用数对表示平面图中的位置时,我们规定:竖排叫做(),横排叫做(),确定第几列一般从()往()数,确定第几行一般从()往()数。【解析】用数对表示平面图中的位置时,我们规定:竖排叫做列,横排叫做行,确定第几列一般从左往右数,确定第几行一般从前往后数。【答案】列;行;左;右;前;后2.第4列第5行,用数对表示是(,);用数对表示是(2,7),那么它在第()列第()行,(8,7)在图中表示第()列第()行的位置。【解析】第4列第5行,用数对表示是(4,5);用数对表示是(2,...
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