A batch of machine parts can be completed by A alone in 5 days. Five-eighths of the total number of parts can be completed. B can make this batch of parts alone by 2 days less than A. After three days of cooperation between the two, A made another 160 parts, and B made one-tenth of the total number of parts, and all of them were finished. When completing the task, how many parts did A make less than B?
一批机器零件，由甲单独做5天可以完成零件总数的八分之五，乙单独做这批零件说用的时间比甲少2天．现由两人合作3天后，接着甲又做了160个零件，乙又做了零件总数的十分之一，全部做完．完成任务时，甲比乙少做了多少个零件？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) / 5</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / (1/8)</gadget>
<output>8</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/8) + (1/6)</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">(7/24) * 3</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (7/8) - (1/10)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">160 / (1/40)</gadget>
<output>6_400</output>

<gadget id="calculator">(1/6) * 3</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) + (1/10)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/8) * 3</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(3/5) - (3/8)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">6_400 * (9/40)</gadget>
<output>1_440</output>

<gadget id="calculator">1_440 - 160</gadget>
<output>1_280</output>

<result>1_280</result>