There are 145 students in the third grade and 155 students in the fourth grade in a certain elementary school. The school will distribute 4 peaches to each of the students in these two grades. How many peaches are there in total?
某小学三年级有学生145人，四年级有学生155人，学校要为这两个年级的学生每人发4个桃子．一共要发多少个桃子？
<gadget id="calculator">145 + 155</gadget>
<output>300</output>

<gadget id="calculator">300 * 4</gadget>
<output>1_200</output>

<result>1_200</result>