Remember that there are 100 pence in £1.
Subtract to work out the change.
Example
Jack buys 3 ice creams costing 54p each.
How much change does he get from £2?
Answer
First we work out 54 × 3.
This is the same as 50 × 3 added to 4 × 3 = £1.50 + 12p = £1.62
Then we count on from £1.62 to £1.70 to £2.00 to work out the change.
The change is 8p + 10p + 10p + 10p = 38p