303*2 Use the multiplier 2 to multiply the two 3s in 303 respectively, what is the difference between the two products obtained?
303*2用乘数2分别去乘303中的两个3，所得的两个乘积相差多少．
<gadget id="calculator">300 * 2</gadget>
<output>600</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">600 - 6</gadget>
<output>594</output>

<result>594</result>