The school bought back 400 sheets of colored paper. The students used 183 sheets to make paper flowers and 127 sheets to make small flags. How many sheets are left?
学校买回400张彩色纸，同学们做纸花用去183张，做小旗用去127张，还剩下多少张？
<gadget id="calculator">183 + 127</gadget>
<output>310</output>

<gadget id="calculator">400 - 310</gadget>
<output>90</output>

<result>90</result>