I can solve problems in a practical context involving addition and subtraction of money in both £ and p, including giving change
What does this objective mean?
This objective asks that children are able to solve real-life word problems involving the addition and subtraction of money.
How might it be assessed in the 7+?
They may be required to add money, for example:
Sue has 21p and Ben has 16p more. How much money does Ben have?
They may be required to subtract money, including giving change. For example:
Jack bought an ice-cream for £1.20. He paid with a £2 coin. How much change did Jack receive?
How do I teach this to my child?
1. Encourage your child to tackle money word problems in the same way they would any other word problem: read the problem and underline the important parts, understand what it is asking you to do, choose how you will work out the answer, then find the answer and check it.
2. The part that children often find most tricky is understanding what the problem is asking them to do. For money problems, a good way of getting your child to understand what the problem is asking them is to act it out, using real coins. This is particularly effective for problems involving finding change, which is a concept that children often find difficult to comprehend.
Example:
Jack bought an ice-cream for 60p. He paid with a £1 coin. How much change did Jack receive?
Pretend your child is Jack and you are the shopkeeper. Your child uses a £1 coin to pay for an ice-cream. Explain to your child that they have given you £1, but that the ice-cream only costs 60p. Ask them what could be done to make this fair (answer: you should give them 40p change). Explain that by giving change, you are giving them the difference between the two amounts and therefore subtracting one amount from the other.
Act out a number of examples in different roles, each time asking your child to calculate the correct amount of change.
3. Remind your child of the different methods they could use to add and subtract amounts of money.
For some amounts, they may be able to find the answer mentally. For example, £2.00 – 70p; show your child that they could count back 7 lots of 10.
For other amounts, your child may prefer to use written methods. For example, 16p + 28p; show your child that they could use column addition.
How can we practise this?
Give your child some example questions to work through. (See resources below for some ideas)
Teaching resources:
I can solve problems in a practical context involving addition and subtraction of money in both £ and p, including giving changeRelated objectives for Measurement
- I can record and compare time in terms of seconds, minutes and hours; use vocabulary such as o’clock, am/pm, morning, afternoon, noon and midnight
- I know the number of seconds in a minute, minutes in an hour, hours in a day and days in each month, year and leap year
- I can compare and order lengths, mass, volume/capacity and record the results using >, < and =
- I can measure the perimeter of simple 2-D shapes
- I can recognise and use symbols for pounds (£) and pence (p)
- I can find different combinations of coins that equal the same amounts of money
- I can tell and write the time from an analogue clock, including using Roman numerals from I to XII, and from a 12-hour digital clock
- I can choose and use appropriate standard units to estimate and measure length/height in any direction (m/cm); mass (kg/g); temperature (°C); capacity (litres/ml) to the nearest appropriate unit, using rulers, scales, thermometers and measuring vessels
