A kind of newspaper, if you only subscribe for one month, each copy is 15 yuan, if you subscribe for one year in a row, you can get a 10% discount. This year, Xiaoliang's family subscribed to one such newspaper. How much did they spend in total a year?
一种报纸，如果只订一个月，每份15元，如果连续订一年，可以优惠10%．今年小亮家订了1份这样的报纸，一年共花多少钱？
<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">15 * 12 * (9/10)</gadget>
<output>162</output>

<result>162</result>