CompSquare(Math Drills) 與 Factorization training 使用情況與統計

Just right for brain teasers. You will be able to do mental math to complete the square. You can enjoy it like a puzzle with simple operations. There are two types of completing the square, each with two modes. In practice mode, tips are displayed. In challenge mode, score a lot within the time limit. If you can exceed a thousand points, you are a genius!!