A 6-meter-long rope, after cutting (1/2) of it, cut off another 2 meters, how many meters are left?
一根6米长的绳子，剪去它的(1/2)后，又剪去2米，还剩下多少米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6 * (1/2)</gadget>
<output>3</output>

<gadget id="calculator">6 - 3 - 2</gadget>
<output>1</output>

<result>1</result>