Question
The distance between David's home and the bank is 720 m. After walking 310 m from his home to the bank, he stopped and walked back to a park. If the park is 130 m away from the bank, what was the distance he walked back?
4 m

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The distance between David's home and the bank is 720 m. After walking 310 m from his home to the bank, he stopped and walked back to a park. If the park is 130 m away from the bank, what was the distance he walked back?