Explore the connection between addition and subtraction (ACMNA029)
Recognise and explain the connection between addition and subtraction (ACMNA054)
LO: To recognise addition and subtraction are connected.
Know:
- How to add
- How to Subtract
Understand:
- That addition and subtraction are connected and that they are inverse (opposite) relationships.
Do:
- I can recognise the connection between addition and subtraction.
Adding and Subtracting are Related
Adding means to increase your original size (making it bigger). You are adding more to the original.
If I started with 2 apples and I add 3 more apples to the original, now I have 5 apples.
Subtraction
Subtracting means to decrease (take away) from your original amount. You are making the original amount smaller.
If I started with 5 apples and I take away 2 apples from the original, now I have 3 apples left.
Number Families
There is a relationship between adding and subtracting and it is opposite of each other.
For example,
2 + 3 = 5
5 – 2 = 3
5 – 3 = 2
Teaching Ideas
Graphic Organisers
ACARA Work Samples
