Divide a number by 5 to get 9, the remainder is 3, what is the number?
一个数除以5得9，余数是3，这个数是多少．
<gadget id="calculator">9 * 5</gadget>
<output>45</output>

<gadget id="calculator">45 + 3</gadget>
<output>48</output>

<result>48</result>