Year 3, Unit 1, Block A

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# Sum in a Box: A year 3, addition worksheet

## Activity Title: SUM IN A BOX

## Topic(s): ADDITION

## References(s): Year 3, Unit 1, Block A

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**Curriculum Objective:**
Derive and recall all addition and subtraction facts for each number to 20, sums and differences of multiples of 10 and number pairs that total 100

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