There is a two-digit number, the number in the tens digit is 4 times the number in the ones digit, if you subtract 5 from it, the tens digit is the same as the ones digit, then the two digit digit minus 10 is How many
有一个两位数，这个两位数十位上的数字是个位上的数字的4倍，如果把它减去5，十位数字就与个数字相同，那么这个两位数减去10后是多少
<gadget id="calculator">82 - 10</gadget>
<output>72</output>

<result>72</result>