There are 38 students in Class 4 and 1 of a certain school. At the beginning of the term, everyone bought 4 identical small horizontal grid books, each of which was 0.25 yuan. How much did the whole class spend on the horizontal grid book?
某校四1班有38人，开学时每人都买了4本同样的小横格本，每本0.25元．全班买横格本花了多少钱？
<gadget id="calculator">4 * 38</gadget>
<output>152</output>

<gadget id="calculator">0.25 * 152</gadget>
<output>38</output>

<result>38</result>