5000-2-4-6...-98-100=how many.
5000-2-4-6…-98-100=多少．
<gadget id="calculator">2 + 100</gadget>
<output>102</output>

<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">102 * 25</gadget>
<output>2_550</output>

<gadget id="calculator">5_000 - 2_550</gadget>
<output>2_450</output>

<result>2_450</result>