Question
Pamela bought some buttons. She gave 13 of the buttons to her sister and sold 37 of the remaining buttons. After that, she bought another 221 buttons and had the same number of buttons that she bought at first. How many buttons did Pamela buy at first?
4 m

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Pamela bought some buttons. She gave 13 of the buttons to her sister and sold 37 of the remaining buttons. After that, she bought another 221 buttons and had the same number of buttons that she bought at first. How many buttons did Pamela buy at first?