What is the product of half of 3.5 times 1.9?
3.5的一半乘1.9，积是多少？
<gadget id="calculator">3.5 / 2</gadget>
<output>1.75</output>

<gadget id="calculator">1.75 * 1.9</gadget>
<output>3.325</output>

<result>3.325</result>