Skillbuilders Add & Subtract 2  helps students create a solid foundation in addition and subtraction for numbers up to 7 digits. It deals with each of the following topics:

1. Addition

2. Subtraction

3. Using numbers to 100

4. Using numbers to 1000 and beyond

5. Using large numbers to 7 digits

6. Problems using trading

7. Word problems applying the above

Each topic has both helpful explanations and examples showing students the methods for answering the problems. The book has 60 sets of questions in total and answers are provided.