Use one truck to transport 35 tons of cement. It has been transported 6 times, and each time it transports 4 tons. How many tons will it take to transport all the cement?
用一辆卡车运35吨水泥，已经运了6次，每次运4吨，还需运多少吨才能把水泥全部运完？
<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">35 - 24</gadget>
<output>11</output>

<result>11</result>