Put 18 △ in the first row and 24 △ in the second row. How many △ are moved from the second row to the first row, and the △ of the two rows will be the same.
第一行摆18个△，第二行摆24个△．第二行移多少个△到第一行，两行的△就同样多．
<gadget id="calculator">24 - 18</gadget>
<output>6</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>