A student mistook a factor of 9 as 7 when doing a two-digit multiplication, and the result was 756. What is the correct number?
一学生做一道两位数乘两位数时，错把一个因数9看成7，结果得数为756，正确得数是几？
<gadget id="calculator">756 / 7</gadget>
<output>108</output>

<gadget id="calculator">108 * 9</gadget>
<output>972</output>

<result>972</result>