Lesson

The strategy of counting on will be helpful in this lesson. Let's try a practice problem to review.

Write the next number in the pattern:

1,\,3,\,5,\,7,\,9,\, 11,\,⬚

Worked Solution

Idea summary

Counting on is helpful to find the next number in a pattern.

Countries around the world have different types of money (which are also called currencies), usually in the form of notes and coins. In Australia, we use **dollars and cents** as our currency.

Let's watch a video about the different Australian notes and coins and how we can use them in everyday life.

What is the value of each coin?

a

Worked Solution

b

Worked Solution

Idea summary

The value of a coin is written on the coin.

Silver coins are for cents, and gold coins are for dollars.

We can add notes and coins together to make a new total. Watch this video to see how.

Which of the following shows a total of \$22.50?

A

B

Worked Solution

Idea summary

100 cents makes 1 dollar.

All notes have dollar values. The value is written on the note.

To add money we can write the values as decimals and add them using a vertical algorithm.

uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers