隐私政策 了解本应用如何处理本地题单、模板、错题记录、设置和导出分享数据。 用户协议 了解本应用提供的口算练习服务、使用规则、免责声明和协议变更说明。

Privacy Policy Learn how the app handles local worksheets, templates, wrong-question records, settings, and exported content. User Agreement Learn about the arithmetic practice service, usage rules, disclaimers, and agreement updates.