题目与答案不符
都是答案错的多,错题太多了,答案与题目不相符
Yes, 二年级数学应用题练习问答版 is completely free and it doesn't have any in-app purchases or subscriptions.
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二年级数学应用题练习问答版 is free.
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都是答案错的多,错题太多了,答案与题目不相符