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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.

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Adding and Subtracting are Related

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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.

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Subtraction

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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.

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Number Families

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There is a relationship between adding and subtracting and it is opposite of each other.

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For example,

2 + 3 = 5
5 – 2 = 3

5 – 3 = 2

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Teaching Ideas

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Graphic Organisers

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ACARA Work Samples

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Addition Videos

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