A necklace is 70 cm long and has pearls every 7 cm. How many pearls are there in this necklace?
一条项链长70厘米，每隔7厘米有颗珍珠．这条项链上共有多少颗珍珠．
<gadget id="calculator">70 / 7</gadget>
<output>10</output>

<result>10</result>