Xiao Ma did the subtraction first when calculating 200-□*2, and the result was 240. So what is the correct answer for this question?
小马在计算200-□*2时先算了减法，结果得出240．那么这道题的正确结果应该是多少．
<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<gadget id="calculator">200 - 160</gadget>
<output>40</output>

<result>40</result>