Galaxy Mall is celebrating New Year's Day with promotional activities. The Haier LCD TV with an original price of 3,500 yuan is now on sale at a 10% discount. How much is it cheaper to buy a Haier LCD TV than before?
银河商场庆元旦进行促销活动．原价3500元的海尔液晶电视，现在打九折出售，现在买一台海尔液晶电视比原来便宜了多少元？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">3_500 * (1/10)</gadget>
<output>350</output>

<result>350</result>