The buying station buys red dates, 900 kilograms in the morning and 1020 kilograms in the afternoon, and each 15 kilograms is packed in a bag. How many more bags are purchased in the afternoon than in the morning?
收购站收购红枣，上午收购了900千克，下午收购了1020千克，每15千克装一袋，下午比上午多收购多少袋？
<gadget id="calculator">1_020 / 15</gadget>
<output>68</output>

<gadget id="calculator">900 / 15</gadget>
<output>60</output>

<gadget id="calculator">68 - 60</gadget>
<output>8</output>

<result>8</result>