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Partial Sums Addition
This app can be used to teach and study the partial sums addition method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random addition problems with small and large numbers. The number of digits in the numbers can be set.
Wired.com:
Esa Helttula’s apps are all fantastic for math learning and practice, and aren’t cluttered with mini-games, incentives, or annoying music.
The Partial Sums Method
The partial sums addition method is a two-step process. In the example 764 + 340, each place value is first added separately from left to right. The resulting addition 1000 + 100 + 4 produces the answer 1104.
In the Everyday Mathematics curriculum the partial sums method is the focus algorithm for addition.
Endorsed By Teachers
R. Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada:
"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. They also provide individualized feedback to each student, with an immediacy that is not always possible through pencil and paper practice. Being able to adjust the level of difficulty to suit their needs is also very motivating for the students. I am so glad to have come across this great educational tool!"
The App Is Easy To Use
The numbers are aligned automatically so that the user can concentrate on solving the operations for each column.
After you solve the operation for each column the correct answer will fly to the right place. If you press the wrong button the answer will appear above the keyboard but it will not move.
The App Has The Following Features:
- Custom interfaces for iPhone and iPad
- Each number can have from 2 to 3 digits
- Problems can be custom or random
- There can be 2 or 3 numbers to add
- The current operation for each column can be hidden
- The operands of the current operation can be highlighted
- Colors of the interface can be changed
- The speed of the animations can be set
Video of the App
You can see a video of the Partial Sums Addition app in action at my site idevbooks.com.
Part of a series of iDevBooks math apps
This app is one of the 17 successful and acclaimed iDevBooks math apps for iPhone, iPod Touch, and iPad. Wired.com, iear.org, and other sites have endorsed the apps and they are used in dozens of schools. For more information please visit http://idevbooks.com
The iDevBooks math apps contain no ads, in-app purchases, push notifications, tracking, or any kind of data collection whatsoever. The settings screen of each app contains a link to idevbooks.com website for support and feedback. For more information please see the privacy policy at idevbooks.com.
Feedback & requests for new features
All feedback is welcome and new features will be added based on user feedback.
What's new
- Sometimes the digits were not aligned properly
- Other minor bug fixes
For feedback and information about 16 other math apps please visit http://idevbooks.com
Screenshots
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- Last changed:
- Mar 09, 2012
- Category:
- Education
- Developer:
- Esa Helttula
- Version:
- 2.1
- Average Rating:
- 3.50 (3)
- Size:
- 0.6 MB
- Other Apps By This Developer
-
• Ancient Egyptian Multiplication
• Column Addition
• Column Division
• Column Subtraction
• Everyday Column-Addition
• Fraction Math
• Grid Multiplication
• Lattice Multiplication
• Left-to-Right Subtraction
• Long Division
• Long Multiplication
• Partial Differences Subtraction
• Partial Products Multiplication
• Partial Quotients Division
• Trade-First Subtraction
• Visual Multiplication Table
