The third grade originally had 458 volumes of books, 200 of which were damaged and cleared. On Children’s Day, the students donated another 106 volumes and distributed them to 4 groups. How many books per group on average?
三年级原有藏书458册，有200册破损清除了，六一儿童节时同学们又补捐了106册，分给4个小组，平均每组分多少本？
<gadget id="calculator">458 - 200</gadget>
<output>258</output>

<gadget id="calculator">258 + 106</gadget>
<output>364</output>

<gadget id="calculator">364 / 4</gadget>
<output>91</output>

<result>91</result>