Question
Lui has 120 mochi balls. He puts 7 mochi balls in each bag, except the last bag which has fewer than 7 mochi balls. How many more mochi balls does Lui need so that he has exactly 7 mochi balls in each bag?
2 m

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Lui has 120 mochi balls. He puts 7 mochi balls in each bag, except the last bag which has fewer than 7 mochi balls. How many more mochi balls does Lui need so that he has exactly 7 mochi balls in each bag?