A batch of sand was purchased at the construction site, and 12 bags of 25 kilograms each have been shipped back. There are still 560 kilograms that have not been shipped. How many kilograms of this batch of sand are there in total?
工地购进一批沙子，已经运回了12袋，每袋25千克，还有560千克没有运，这批沙子一共有多少千克？
<gadget id="calculator">25 * 12</gadget>
<output>300</output>

<gadget id="calculator">300 + 560</gadget>
<output>860</output>

<result>860</result>