The store brings in 7 boxes of chalk, 8 boxes in each box, of which 30 boxes are white chalk and the rest are colored chalk. How many boxes of colored chalk?
商店运进7箱粉笔，每箱8盒，其中白粉笔30盒，其余是彩色粉笔．彩色粉笔多少盒？
<gadget id="calculator">7 * 8</gadget>
<output>56</output>

<gadget id="calculator">56 - 30</gadget>
<output>26</output>

<result>26</result>