The store brought in 135 kilograms of apples in the morning, and 75 kilograms of apples in the afternoon were three times more than in the morning. How many kilograms more apples are brought in in the afternoon than in the morning?
商店上午运进苹果135千克，下午运进的苹果比上午的3倍还多75千克．下午运进的苹果比上午多多少千克？
<gadget id="calculator">135 * 3</gadget>
<output>405</output>

<gadget id="calculator">75 - 135</gadget>
<output>-60</output>

<gadget id="calculator">405 + (-60)</gadget>
<output>345</output>

<result>345</result>