Represent Australian money in different ways and solve purchase problems.
Example 1
You have 3 one-dollar coins, 2 fifty-cent coins, 2 twenty-cent coins and 3 five-cent coins. What is the total value in cents?
Show worked answer
Answer: 455
- Find the value of each group: 300c,100c,40c and 15c.
- Add the values to get 455 cents, which is $4.55.
Example 2
You have 2 one-dollar coins, 1 fifty-cent coin, 3 twenty-cent coins and 2 five-cent coins. What is the total value in cents?
Show worked answer
Answer: 320
- Find the value of each group: 200c,50c,60c and 10c.
- Add the values to get 320 cents, which is $3.20.
Example 3
A notebook costs $1.95. You pay with $5.00. How much change should you receive, in cents?
Show worked answer
Answer: 305
- Change is the amount paid minus the price.
- 500c−195c=305c change ($3.05).