Sunshine Primary School purchased 140 chairs, and the third grade took 84. If the remaining chairs are placed in 8 equal rows in the auditorium, how many chairs are there in each row?
阳光小学添置140张椅子，三年级领走了84张，如果把剩下的椅子放在礼堂里排成相等的8行，每行有多少张椅子？
<gadget id="calculator">140 - 84</gadget>
<output>56</output>

<gadget id="calculator">56 / 8</gadget>
<output>7</output>

<result>7</result>