價格：免費
檔案大小：78.7 MB
版本需求：系統需求：iOS 9.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
Add and Subtract is an app designed to help grade 1, 2 and 3 kids to master addition and subtraction. With this app, they can learn from a simple to long addition and subtraction while having fun.
Subjects included in the program:
• Addition under 10
• Subtraction under 10
• Make it 10
• Addition under 20
• Subtraction under 20
• Make it 20
• Addition under 100
• More addition under 100
• Subtraction under 100
• More subtraction under 100
• Addition under 1000
• Subtraction under 1000
• Mixed Operations
• Word Problems
支援平台：iPhone, iPad