hi!guys,51x19=60,How to move a match to make the equation set up?如何移动一根火柴使等式成立？

As a map (each horizontal, vertical, and slash is considered a match), only 1 matches are moved to make the equation set up. Which one should be moved? (original type is 51 x 19=60)如图（每一横，竖，斜线都视为火柴），只移动1根火柴，使等式成立，则需要移动哪一根？（原式为51×19=60）

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