At the school sports meeting, the fourth and fifth grade students lined up to enter the arena. There are 10 students in each row of fourth grade students, standing in 16 rows. There are 8 students in each row of fifth grade students, standing in 25 rows. Fourth and fifth grades, which grade has the most students? How many people?
在学校运动会上，四、五年级同学列队入场．四年级学生每排10人，站了16排．五年级学生每排8人，站了25排．四、五年级，哪个年级人数多？多多少人？
<gadget id="calculator">25 * 8</gadget>
<output>200</output>

<gadget id="calculator">16 * 10</gadget>
<output>160</output>

<gadget id="calculator">200 - 160</gadget>
<output>40</output>

<result>40</result>