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/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