There are 127 girls in the third grade, and 71 boys are 3 times less than girls. How many boys are there?
三年级有女生127人，男生的人数比女生的3倍少71人，男生有多少人？
<gadget id="calculator">127 * 3</gadget>
<output>381</output>

<gadget id="calculator">381 - 71</gadget>
<output>310</output>

<result>310</result>