There are 600 parts in a batch, all (3/10) are completed on the first day, and 90% of the first day is completed on the second day, how many parts are completed in two days?
一批零件有600个，第一天完成了全部的(3/10)，第二天完成了第一天的90%，两天一共完成了多少个零件？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">600 * (3/10)</gadget>
<output>180</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">600 * (3/10) * (9/10)</gadget>
<output>162</output>

<gadget id="calculator">180 + 162</gadget>
<output>342</output>

<result>342</result>