Trade-First Subtraction for Pc

1. Some of the other 40 iDevBooks math apps are Column Addition, Long Multiplication, Long Division, Column Subtraction, Visual Multiplication Table, Partial Differences Subtraction, Partial Products Multiplication, Partial Sums Addition, Decimal Rounding, etc.

2. iDevBooks math apps have been reviewed and endorsed by Wired.com, IEAR.org, Edudemic.com, Teachers with Apps, and other respected sites and organizations.

3. The trade-first subtraction method is similar to the traditional column subtraction method.

4. "The math apps by Esa Helttula allow students to practice and reinforce the specific computation strategies taught in class, with as much or as little scaffolding as necessary.

5. In the Everyday Mathematics curriculum the trade-first method is the focus algorithm for subtraction.

6. The user can solve random subtraction problems with small and large numbers.

7. This app can be used to teach and study the trade-first subtraction method.

8. After you solve the operation for each column the correct answer will fly to the right place.

9. This app also does not contain any links to other apps or the web.

10. The numbers are aligned automatically so that you can concentrate on solving the operations for each column.

11. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings.

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