How much is 21 times of 406 more than 16 406?
406的21倍比16个406多多少？
<gadget id="calculator">406 * 21</gadget>
<output>8_526</output>

<gadget id="calculator">406 * 16</gadget>
<output>6_496</output>

<gadget id="calculator">8_526 - 6_496</gadget>
<output>2_030</output>

<result>2_030</result>