There is a pile of coal in the cafeteria, 36 tons are used, 8 tons more than the rest, how many tons is this pile of coal?
食堂有一堆煤，用去36吨，用去的比剩下的多8吨，这堆煤原有多少吨？
<gadget id="calculator">36 - 8</gadget>
<output>28</output>

<gadget id="calculator">28 + 36</gadget>
<output>64</output>

<result>64</result>