Question
Mr Warren had 51 volleyballs. He gave 13 of his volleyballs to Julian. During the practice, Mr Warren lost 4 volleyballs. How many volleyballs did Mr Warren have in the end?
4 m

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Mr Warren had 51 volleyballs. He gave 13 of his volleyballs to Julian. During the practice, Mr Warren lost 4 volleyballs. How many volleyballs did Mr Warren have in the end?