Hongqi Primary School donated books to the children in the disaster area. There were 36 people in Class 4 and 1, and each person donated 4 books on average. Class 4 and 2 donated a total of 152 books. How many books did the fourth grade students donate in total?
红旗小学给灾区小朋友捐书，四1班有36人，平均每人捐4本，四2班一共捐了152本，四年级学生一共捐书多少本？
<gadget id="calculator">36 * 4</gadget>
<output>144</output>

<gadget id="calculator">144 + 152</gadget>
<output>296</output>

<result>296</result>