The amount of Electricity used is measured in units To calculate the amount used we use the following formula Units used = PRESENT reading - PREVIOUS.

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Presentation transcript:

The amount of Electricity used is measured in units To calculate the amount used we use the following formula Units used = PRESENT reading - PREVIOUS reading Meter Reading PresentPrevious Meter Reading PresentPrevious Units used = = 167 Units used = = 205

Calculate the units used for each of the following sets of readings PresentPrevious Units = =189 Units = = Units = = Units = = We can calculate the cost of the electricity using Total cost = units used x cost per unit Find the cost of 125 units of electricity at 6p per unit Cost =125 x 6 =750p =£7.50

Electricity Bills Calculate the total cost for each of the following PresentPrevious 1 unit of electricity costs 4p Units usedTotal cost p = £ p = £ p = £ p = £ p = £3.12

Other costs on an electricity bill Standing charge - this is a fixed amont of money paid even if no electricity is used VAT is paid on the total electricity bill

Bright Spark Electricity House H. Old, 3 This Street 11/09/ /12/96 Meter ReadingChargesAmount PresentPrevious units at 8p Standing charge Sub-total VAT at 17.5% Total Due £ £15.12 £27.62 £4.83 £32.45