Last year, Guanghua's family used 1,000 kilowatt-hours of electricity, and the price per kilowatt-hour was 0.45 yuan. How much is the average monthly electricity bill for Guanghua's family?
光华家去年一年用电1000度，每度电的价格是0.45元，光华家平均每月应付的电费是多少元？
<gadget id="calculator">1_000 / 12</gadget>
<output>250/3 = around 83.333333</output>

<gadget id="calculator">0.45 * (250/3)</gadget>
<output>37.5</output>

<result>37.5</result>