There are 1,750 kilograms of rice in the grain store, and 4 bags are sold, each weighing 100 kilograms. How many kilograms of rice are left unsold?
粮店有大米1750千克，卖了4袋，每袋重100千克，还剩多少千克大米没卖？
<gadget id="calculator">4 * 100</gadget>
<output>400</output>

<gadget id="calculator">1_750 - 400</gadget>
<output>1_350</output>

<result>1_350</result>