The school held a love book donation activity. A total of 120 books were donated in the third grade, and 48 books were donated by the fourth grade, twice as much as the third grade. How many books were donated by the fourth grade?
学校举行爱心图书捐赠活动，三年级共捐赠了120本，四年级捐赠的本数比三年级的2倍少48本，四年级捐赠爱心图书多少本？
<gadget id="calculator">120 * 2</gadget>
<output>240</output>

<gadget id="calculator">240 - 48</gadget>
<output>192</output>

<result>192</result>