Question
Xuan spent 4 days making paper cranes for her sisters. Each day, she managed to make 2 more paper cranes than the day before. She made a total of 40 paper cranes. How many paper cranes did she make on the first day?
2 m

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Xuan spent 4 days making paper cranes for her sisters. Each day, she managed to make 2 more paper cranes than the day before. She made a total of 40 paper cranes. How many paper cranes did she make on the first day?