## Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation(ACMNA055)

### LO:

To recognise single-digit addition and subtraction facts.

### Know:

• How to Subtract

### Understand:

• That there are addition and subtraction facts to help aide mental strategies for computation

### Do:

• I can use number facts to add and subtract quickly.

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## If I have 1. In order to make 10, I always have to add 9 to it. Same with if I have 2. I always have to add 8 to it to make 10.

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## The sum is the result when you add all the numbers together.

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# Subtracting

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## So if you know your friends of 10 addition facts, then the friends of 10 subtraction facts should be fairly easy.

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## The difference is the result when you subtract all the numbers.

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