Our school has 232 students in the first and second grades, 257 students in the third and fourth grades, and 298 students in the fifth and sixth grades. How many more students are there in the fifth and sixth grades than in the first and second grades?
我校一、二年级有232人，三、四年级有257人，五、六年级有298人，五、六年级比一、二年级多多少人？
<gadget id="calculator">298 - 232</gadget>
<output>66</output>

<result>66</result>