The supermarket shipped 360 kilograms of grapes, packed them in cardboard boxes that can hold 9 kilograms each, and shipped 30 boxes of apples. How many boxes of grapes are more than apples?
超市运来了360千克葡萄，用每箱能装9千克的纸箱装这些葡萄，又运来了30箱苹果，葡萄比苹果多多少箱？
<gadget id="calculator">360 / 9</gadget>
<output>40</output>

<gadget id="calculator">40 - 30</gadget>
<output>10</output>

<result>10</result>