Math Flash Cards (Free)

Math Flash Cards (Free): Children can build and improve essential math skills in: addition, subtraction, multiplication and division. Features include: • NEW: option to allow cards in order (for quicker memorization) or random • NEW: option to show correct answer if wrong • option to select addition & subtraction or multiplication & division together • friendly and encouraging voice • adjustable countdown timer for test-like conditions • top and bottom number ranges can be edited • number ranges: 0 to 50 for addition and subtraction • number ranges: 0 to 20 for multiplication and division • option to allow three tries • option to repeated missed cards for review at the end • scores list to review improvement This app is free but is support by ads. A paid ad-free version is also available. Bugs or suggestions? Please let us know through Email. 数学闪存卡（免费）： 孩子们可以建立和完善必要的数学技能：加法，减法，乘法和除法。 其特点包括： •新：选项允许卡顺序（用于快速记忆）或随机 •新：选项，以显示如果错了正确的答案 •选项选择加和减法和乘法除法与一起 •友好和鼓励的声音 •测试样条件可调倒计时 •顶部和底部号范围可编辑 •编号范围：0〜50的加法和减法 •编号范围：0〜20乘法和除法 •选项，允许尝试三次 •在最后选项重复错过卡审查 •分数列出检讨改进 这个程序是免费的，但是广告支持。 已付费无广告版本也已经推出。 错误或建议？请让我们知道通过电子邮件。