Calculation: (10000+4000-6000+200)+123321=how much.
计算：(10000+4000-6000+200)+123321=多少．
<gadget id="calculator">4_000 - 6_000</gadget>
<output>-2_000</output>

<gadget id="calculator">10_000 + (-2_000) + 200</gadget>
<output>8_200</output>

<gadget id="calculator">8_200 + 123_321</gadget>
<output>131_521</output>

<result>131_521</result>