box of milk is 500 grams, how many boxes of milk weigh 3 kg.
一盒牛奶500克，多少盒牛奶重3千克．
<gadget id="calculator">3 * 1_000</gadget>
<output>3_000</output>

<gadget id="calculator">3_000 / 500</gadget>
<output>6</output>

<result>6</result>