随时随地训练估算能力。
估算练习 - 误差vs速度
by 浩岚 林
What is it about?
随时随地训练估算能力。
App Store Description
随时随地训练估算能力。
功能描述：
- 加减乘除的运算题，可设置1-4位数难度。
- 提交答案后显示“正确答案”、“误差率”、“运算所用时间”。
- 记录“答题次数”、“平均误差率”、“平均运算时间”（选中记录即可删除）。
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AppAdvice does not own this application and only provides images and links contained in the iTunes Search API, to help our users find the best apps to download. If you are the developer of this app and would like your information removed, please send a request to takedown@appadvice.com and your information will be removed.