52 kg of candy was distributed to three classes, big, middle and small. The big class got 4 kg more than the middle class, and the middle class got 6 kg more than the small class. How many kilograms did the small class get?
52㎏糖果分给大中小三班，大班比中班多分4㎏，中班比小班多分6㎏，小班分了多少千克？
<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<gadget id="calculator">10 + 6</gadget>
<output>16</output>

<gadget id="calculator">52 - 16</gadget>
<output>36</output>

<gadget id="calculator">36 / 3</gadget>
<output>12</output>

<result>12</result>