Question
Mr Jenson had 64 ping pong balls. He gave 12 of his ping pong balls to Ken. During the practice, Mr Jenson lost 4 ping pong balls. How many ping pong balls did Mr Jenson have in the end?
4 m

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Mr Jenson had 64 ping pong balls. He gave 12 of his ping pong balls to Ken. During the practice, Mr Jenson lost 4 ping pong balls. How many ping pong balls did Mr Jenson have in the end?