"Little Sloppy" miscalculated 28*(□+2) as 28*□+2, how much difference is the result obtained from the correct answer.
"小马虎"把28*(□+2)错算成28*□+2，这样得到的结果与正确答案相差多少．
<gadget id="calculator">28 * 2</gadget>
<output>56</output>

<gadget id="calculator">56 - 2</gadget>
<output>54</output>

<result>54</result>