When Xiaohu was doing a multiplication problem, he mistakenly regarded a multiplier of 45 as 54, and the result was 180 more than the original one. What should be the correct result?
小虎做一道乘法计算题时，错将一个乘数45看成了54，结果比原来多了180，那么正确结果应该是多少．
<gadget id="calculator">54 - 45</gadget>
<output>9</output>

<gadget id="calculator">180 / 9</gadget>
<output>20</output>

<gadget id="calculator">45 * 20</gadget>
<output>900</output>

<result>900</result>