Four times a number minus half of 2.48 is equal to (1/4) of 100. Find this number (solution of column equation)
一个数的4倍减去2.48的一半，等于100的(1/4)，求这个数(列方程解)
<gadget id="calculator">2.48 / 2</gadget>
<output>1.24</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">100 * (1/4)</gadget>
<output>25</output>

<gadget id="calculator">1.24 + 25</gadget>
<output>26.24</output>

<gadget id="calculator">26.24 / 4</gadget>
<output>6.56</output>

<result>6.56</result>