A wire is 120 meters long, 30 meters are used for the first time, and 48 meters are used for the second time, how many meters are left? How much rice
一根铁丝长120米，第一次用去30米，第二次用去48米，还剩下多少米？多少米
<gadget id="calculator">120 - 30 - 48</gadget>
<output>42</output>

<result>42</result>