Wednesday, 10 June 2015

Subtraction strategies

Today in maths we learned a new subtraction strategy using an analogy about a policeman and a robber. This strategy helps us to subtract numbers by making the number we are taking away into a tidy number. Then we also need to change the other number the same way... watch this great video to see what to do. Once you are finished try the problem below. 

There are 54 apples in the fruit box. 
We eat 27 at morning tea. 
How many are leftover? 

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