Question

The information booklet for a video console says that the console uses about 0.2 kilowatt of electricity per hour. If electricity costs $0.15 per kilowatt hour, how much does it cost to run the console for an hour?

Answer 1

$0.15 per kilowatt X 0.2 an hour = $0.03
When you're multiplying with decimals don't forget to move the decimal point over. The answer is 0030. So you would move the decimal 3 places to make it 0.03. You keep off the last 0.