When Xiaofang calculates □-40/4*3, she does the subtraction first, then the division, and finally the multiplication. The result is 6, so what should be the correct result?
小芳在计算□-40/4*3时，先算减法，后算除法，最后算乘法，得到的结果是6，那么正确的结果应该是多少．
<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">8 + 40</gadget>
<output>48</output>

<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<gadget id="calculator">48 - 30</gadget>
<output>18</output>

<result>18</result>