價格：免費
檔案大小：3.8 MB
版本需求：OS X 10.11 或以上版本，64 位元處理器
支援語言：英語
Flashcard type drills for addition. Ideal for young children recently introduced to addition.
Select a number 1 through 12 to work on, and you will be given other numbers to add to.
Random cards will be presented, and you will be given 4 choices. If correct, gain a point.
For positive reinforcement, the character says things like "yes" and "I knew it" for correct answers. (There is no audio for wrong answers.)
If wrong, the correct answer will be highlighted in green, and the wrong answers in red.