Simple calculation: 8.34*24.6-83.4*1.46.
简算：8.34*24.6-83.4*1.46．
<gadget id="calculator">8.34 * 24.6</gadget>
<output>205.164</output>

<gadget id="calculator">83.4 * 1.46</gadget>
<output>121.764</output>

<gadget id="calculator">205.164 - 121.764</gadget>
<output>83.4</output>

<result>83.4</result>