A bundle of wires is 100 meters long. 32 meters were used for the first time, and 23 meters were used for the second time. How many meters are left?
一捆电线长100米．第一次用去32米，第二次用去23米，还剩多少米？
<gadget id="calculator">32 + 23</gadget>
<output>55</output>

<gadget id="calculator">100 - 55</gadget>
<output>45</output>

<result>45</result>