Question
Risa bought some erasers. She gave 15 of the erasers to her sister and sold 47 of the remaining erasers. After that, she bought another 345 erasers and had the same number of erasers that she bought at first. How many erasers did Risa buy at first?
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Risa bought some erasers. She gave 15 of the erasers to her sister and sold 47 of the remaining erasers. After that, she bought another 345 erasers and had the same number of erasers that she bought at first. How many erasers did Risa buy at first?