When Ding Ding calculated 8*(□-1.25), he missed the parentheses and wrote 8*□-1.25. How much is the difference from the original number.
丁丁在计算8*(□-1.25)时，漏抄了括号，写成了8*□-1.25，这样得数和原来相差多少．
<gadget id="calculator">8 * 1.25</gadget>
<output>10</output>

<gadget id="calculator">10 - 1.25</gadget>
<output>8.75</output>

<result>8.75</result>