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# Stock Car Sums: A year 3 addition resource for interactive whiteboards

## Activity Title: STOCK CAR SUMS

## Topic(s): ADDITION

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

**Curriculum Objective:**
Add or subtract mentally combinations of one-digit and two-digit numbers

**IWB Activity Description:**
The racing cars are ready to start but one of them is missing a number. Use mental addition and subtraction to choose the right number. There are several levels of varying difficulty.

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