The toy factory produced 640 toys, and after inspection, 10 of them failed. Pack qualified toys into a box of 6 pieces, how many boxes are needed?
玩具厂生产了640个玩具，经检验，其中10个不合格．将合格的玩具每6个装一盒，需要多少个包装盒？
<gadget id="calculator">640 - 10</gadget>
<output>630</output>

<gadget id="calculator">630 / 6</gadget>
<output>105</output>

<result>105</result>