The Jellyfish Palace has a total of 410 inverted jellyfish, 90 of which have been transported away, and the rest will be placed in 4 aquariums. How many are there on average in each aquarium?
水母宫共有倒立水母410条，已经运走了90条，剩下的要放在4个水族箱里，平均每个水族箱多少条？
<gadget id="calculator">410 - 90</gadget>
<output>320</output>

<gadget id="calculator">320 / 4</gadget>
<output>80</output>

<result>80</result>