If you subscribe to a newspaper for only one month, it costs 12 yuan. If you subscribe for a consecutive year, you can get a 10% discount. How much does it cost to subscribe to this newspaper for one year?
一种报纸，如果只定一个月，需要12元，如果连续订一年，可优惠10%，则订一年这种报纸，一共需要多少钱？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">12 * 12 * (9/10)</gadget>
<output>648/5 = around 129.6</output>

<result>648/5 = around 129.6</result>