價格：免費
更新日期：2019-05-21
檔案大小：14.5 MB
目前版本：1.3
版本需求：需要 iOS 11.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
How many subtraction flashcards can you solve in 30 seconds?
Subtraction Flash Cards helps you learn & master subtraction through a fun subtraction quiz by giving you a series of random subtraction equations to solve in a 30 second time frame. Over time your brain will get better and faster at subtracting with each subtraction quiz that you take.
Whether you’re a 3rd grade math or 4th grade math student, teacher, parent or just someone looking to improve on your subtraction, this subtraction game is for you!
So really, how many subtraction flashcards can you solve in 30 seconds? Take the subtraction Flash Cards quiz to find out.
支援平台：iPhone, iPad