Xiao Ming miscalculated 38*(□+4) as 38*□+4, how much difference is the result obtained from the correct answer?
小明同学把38*(□+4)错算成38*□+4，这样得到的结果与正确答案相差多少．
<gadget id="calculator">152 - 4</gadget>
<output>148</output>

<result>148</result>