For the anniversary of the store, you can get 20 yuan off when you spend over 100 yuan. Fans are 78.50 yuan each, calculators are 38.80 yuan each, rice cookers are 8.80 yuan each, and hair dryers are 42.00 yuan each. Uncle Wang bought a fan and a hair dryer. How much?
商店周年庆，满100元减20元，风扇每把78.50元，计算器每个38.80元，电饭煲每个8.80元，电吹风每个42.00元，王叔叔买了一把风扇和一个电吹风，应付多少钱？
<gadget id="calculator">78.5 + 42</gadget>
<output>120.5</output>

<gadget id="calculator">120.5 - 20</gadget>
<output>100.5</output>

<result>100.5</result>