Houses in the UK have an electricity meter. It measures the numbers of Units of electrical energy that are used. A Unit is also called a kilowatthour (kWh). Electricity meters are now mostly put on the outside of houses in boxes like this so that you don't need to be in if they want to read it.
This is what the meter said on 26 November 2013.
This is what it said a week later on 3 December 2013.
This is the reading 2 months later on 31 January 2014.
One kWh costs about 12p at the moment.
1. How many kWh of electrical energy were used between 26 November and 3 December 2013, and how much did it cost?
2. How many kWh of electrical energy were used between 3 December 2013 and 31 January 2014, and how much did it cost?
