kg of seawater in a certain place contains 0.03 kg of salt, how many grams of salt does 100 g of seawater contain?
某地的海水1千克含盐0.03千克，100克海水含盐多少克．
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 / 1_000</gadget>
<output>1</output>

<gadget id="calculator">0.03 * 1 * 100</gadget>
<output>3</output>

<result>3</result>