價格：免費
更新日期：2017-10-06
檔案大小：23.2 MB
目前版本：1.1.1
版本需求：需要 iOS 6.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Find the missing number to balance the calculations.
An excellent tool for reinforcing an understanding of the role of the equals sign.
Choose one objective, or many.
You can choose all the objectives for a single year group (or multiple year groups).
You can also choose to balance between different types of calculations (eg subtraction and division)
支援平台：iPhone, iPad