给定正整数按右图方式构成倒立三角形数表第一行依次写上数l23 在第一行的每相邻两个数正中间的下方写上这两个数之和得到第二行的数 Sketch Coloring Page

给定正整数按右图方式构成倒立三角形数表第一行依次写上数l23 在第一行的每相邻两个数正中间的下方写上这两个数之和得到第二行的数 Template

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tomski给定正整数按右图方式构成倒立三角形数表第一行依次写上数l23 在第一行的每相邻两个数正中间的下方写上这两个数之和得到第二行的数 coloring

给定正整数按右图方式构成倒立三角形数表第一行依次写上数l23 在第一行的每相邻两个数正中间的下方写上这两个数之和得到第二行的数 sketch template

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