價格：免費
檔案大小：35.6 MB
版本需求：需要 iOS 10.0 或以上版本。與 iPad 相容。
支援語言：英語
Complete subtraction problems with minuends to 9,999. Use Place Value Math Chips as your tool to solve the problems. Or, use Demo Mode to have the app showing each step of the process. The app will demonstrate regrouping/borrowing across zeros.
支援平台：iPad