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How do you subtract? - Adding and subtracting: Video playlist - BBC Bitesize
Jerry uses a subtraction machine to change what Albert looks like.
↗ https://www.bbc.co.uk/bitesize/topics/z77ymbk/watch/zbcxkhvJerry uses a subtraction machine to change what Albert looks like.
↗ https://www.bbc.co.uk/bitesize/topics/z77ymbk/watch/zbcxkhv