The school originally had 2,500 blank sheets of paper. 365 sheets are used for the first time, and 355 sheets are used for the second time, how many blank sheets are left?
学校原有2500张白纸．第一次用去365张，第二次用去355张，还剩多少张白纸？
<gadget id="calculator">2_500 - 365 - 355</gadget>
<output>1_780</output>

<result>1_780</result>