Hedong Village needs to build a 540-meter-long canal, and 38 meters will be built every day for the first three days. If the rest is to be done in 6 days, how many meters will be repaired per day on average?
河东村要修一条540米长的水渠，前3天每天修38米．如果剩下的要在6天内完成，平均每天要修多少米？
<gadget id="calculator">38 * 3</gadget>
<output>114</output>

<gadget id="calculator">540 - 114</gadget>
<output>426</output>

<gadget id="calculator">426 / 6</gadget>
<output>71</output>

<result>71</result>