Question
Nora bought some stamps. She gave 15 of the stamps to her sister and sold 38 of the remaining stamps. After that, she bought another 40 stamps and had the same number of stamps that she bought at first. How many stamps did Nora buy at first?
4 m

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Nora bought some stamps. She gave 15 of the stamps to her sister and sold 38 of the remaining stamps. After that, she bought another 40 stamps and had the same number of stamps that she bought at first. How many stamps did Nora buy at first?