Question
Sean invited 10 schoolmates to a conference. He gave each of his schoolmate 6 sticks of seaweed chickens. In the end, Sean had 4 sticks of seaweed chickens left. How many sticks of seaweed chickens did he have at first?
4 m

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Sean invited 10 schoolmates to a conference. He gave each of his schoolmate 6 sticks of seaweed chickens. In the end, Sean had 4 sticks of seaweed chickens left. How many sticks of seaweed chickens did he have at first?