What number is 3.05 less than 1.5 times 4.7?
比4.7的1.5倍少3.05的数是多少？
<gadget id="calculator">4.7 * 1.5</gadget>
<output>7.05</output>

<gadget id="calculator">7.05 - 3.05</gadget>
<output>4</output>

<result>4</result>