價格：免費
檔案大小：13.4 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Learning comnbinations (also known as binomial coefficients or the numbers in Pascal's triangle) is normally not easy or even frustrating.
With the „Combinations - n choose k“ game it suddenly becomes fun to practise those numbers! You start with three lives and you lose a life each time you get the wrong answer. You also play against time, so every 20 seconds you lose a life if you haven't reached the next level at that point.
As you continue the game gets harder and harder, so don't expect to get bored with this app!
支援平台：iPhone, iPad