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Column Addition

       iOS Universal

This math app can be used to teach and study the column 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 or custom addition problems with small and large numbers. The number of digits in the numbers can be set.

The column addition method is also known as columnar addition, long addition or longhand addition.

Review by funeducationalapps.com:

"iDevBooks educational math apps make math enjoyable and entertaining. One of my sons was struggling with math and I must say the use of iDevBooks math apps has really helped him. He now enjoys his math.."

Review by professor Tim Pelton

Tim Pelton, assistant professor of Mathematics Education at the University of Victoria reviewed the sister app of column addition - column subtraction:

“Because no wrong entries are allowed the app provides a passive form of positive reinforcement and your child will likely improve in both confidence and competence with respect to the procedure.”

The interface of Column Addition app is similar to Column Subtraction.

Endorsed by teachers

Rita 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!"

Easy to Use

The numbers are aligned automatically and the user can concentrate on solving the operations for each column. Carrying is handled automatically and it is visualized using a nice animation.

After the user solves the operation for each column the correct answer will fly to the right place. The unit of the answer will fly under the column and the ten is carried over the next column.

If the user presses the wrong button the answer will appear above the keyboard but it will not move.

Over 20 Six-piece Picture Puzzles

The puzzles are pictures of cute animals. Every time the user solves one addition problem, he will see one more piece of a six-piece picture puzzle.

To see all 21 complete puzzles he has to solve almost 200 column addition problems (Some pictures may appear twice before all different pictures have been shown).

The picture puzzle feature can be turned off and on at any time.

The Column Addition App has the Following Settings:

- The user can add 2 or 3 numbers
- The app can provide random problems or the user can input his own numbers
- Each number can have from 1 to 5 digits
- The current operation for each column can be hidden
- The operands of the current operation can be highlighted
- The picture puzzle can be hidden
- Colors of the interface can be changed
- The speed of the animations can be set
- Different interface on iPhone and iPad
- Works in portrait and landscape orientation on the iPad

My other iDevBooks math apps

Some of my 15 other math apps are Column Subtraction, Long Division, Long Multiplication, Lattice Multiplication, Multiplication Table, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, etc.

Feedback and Requests for New Features

Please give feedback at iTunes or visit idevbooks.com and give feedback there.

What's new

Fixes a problem with the puzzle pieces on the iPad. Some pieces were not visible in landscape orientation.

If you have any feedback please visit idevbooks.com. There are now 20 iDevBooks math apps.

Screenshots

	Screenshot 1 of 10

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Last changed:

Nov 20, 2012

Category:

Education

Developer:

Esa Helttula

Version:

2.2

Average Rating:

4.00 (23)

Size:

15.3 MB

Other Apps By This Developer

• Ancient Egyptian Multiplication
• Column Division
• Column Subtraction
• Decimal Rounding
• Equal Addition 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
• Partial Sums Addition
• Polynomial Addition and Subtraction
• Polynomial Long Division
• Polynomial Multiplication
• Russian Multiplication
• Trade-First Subtraction
• Visual Multiplication Table
• Whole Number Rounding