In order to support the learning of elementary school students in the earthquake-stricken areas, our school launched a charity donation activity. The fourth grade donated 235 yuan, the fifth grade donated 65 yuan more than the fourth grade, and the sixth grade donated three times the fifth grade. How much did our school donate in total for the three grades?
为了支援地震灾区小学生的学习，我校开展了献爱心捐款活动，四年级捐235元，五年级比四年级多捐65元，六年级捐的钱数是五年级的3倍．我校三个年级共捐了多少元？
<gadget id="calculator">235 + 65</gadget>
<output>300</output>

<gadget id="calculator">300 * 3</gadget>
<output>900</output>

<gadget id="calculator">235 + 300 + 900</gadget>
<output>1_435</output>

<result>1_435</result>