Mr. Wang’s family bought a commercial house with a total price of 440,000 yuan. If the house payment is paid in one lump sum, there will be a 10% discount. How much does Mr. Wang pay for the house in one lump sum?
王老师家买了一套商品房，总价44万元，如果一次付清房款，可以九折优惠．王老师一次付清房款多少元钱？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">44 * (9/10)</gadget>
<output>198/5 = around 39.6</output>

<result>198/5 = around 39.6</result>