数学悦读(六上 第10周)
小主播:西塘小学六(9)班林雨新
黑板上有5和7两个数,现在规定:将黑板任意两个数相加的和写在黑板上,如:5,7,12(5+7),19(12+7)……那么经过若干次操作,黑板上会出现64吗?
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小主播:西塘小学六(9)班林雨新
黑板上有5和7两个数,现在规定:将黑板任意两个数相加的和写在黑板上,如:5,7,12(5+7),19(12+7)……那么经过若干次操作,黑板上会出现64吗?