The fruit shop ships 12 boxes each of apples and pears, each box of apples weighs 28 kg, and each box of pears weighs 32 kg. How many kilograms less apples are shipped than pears?
水果店运来苹果、梨各12箱，苹果每箱28千克，梨每箱32千克．运来的苹果比梨少多少千克？
<gadget id="calculator">32 - 28</gadget>
<output>4</output>

<gadget id="calculator">4 * 12</gadget>
<output>48</output>

<result>48</result>