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在数学中,顺读倒读都成立的等式,叫回文等式。“回文等式”与“回文诗”相互对应,既映射出文学的数学内涵,也彰显出数学的文学品位,给人以妙趣横生的感觉。在减法中有没有回文等式呢?当然有。如53—26=62—35(=27),826—529=925—628(=297),9473—5387=7835—3749(=4086),每个等式从左到右、从右到左,数字的顺序恰好相反。像这样,两数的差等于减数的逆序数与被减数的逆序数的差的等式,我们就叫做减法回文等式。那么,减法回
In mathematics, the equations that are set up in a straightforward reading are called palindromes. “Palindrome equation ” and “palindrome” correspond to each other, which not only reflects the mathematical connotation of literature, but also highlights the literary taste of mathematics, giving people a sense of fun. Is there any palindrome in subtraction? Of course. Such as 53-26 = 62-35 (= 27), 826-529 = 925-628 (= 297), 9473-5387 = 7835-3749 (= 4086), each equation from left to right and from right to left , The order of the numbers is exactly the opposite. In this way, the difference between two numbers is equal to the difference between the inverse number of the subtraction and the inverse of the number of subtractions, we call this subtraction palindrome equation. Then, subtract back