A bundle of 500-meter-long wires used up 147 meters first, and then 195 meters. How many meters are left in this bundle of wires?
一捆500米长的电线，先用去了147米，又用去195米．这捆电线还剩多少米？
<gadget id="calculator">500 - 147 - 195</gadget>
<output>158</output>

<result>158</result>