Column Addition helps students learn and practice the column addition method step by step.
The app aligns the numbers automatically so students can focus on solving each column. Carrying is handled visually with animations, helping students understand how digits move from one column to the next.
Students can solve randomly generated problems or enter their own addition problems. The number of digits can be adjusted, making the app useful for different skill levels.
Column addition is also known as columnar addition, long addition, or longhand addition.
Features:
- Add 2 or 3 numbers
- Each number can have 1–5 digits
- Randomly generated or manually entered problems
- Automatic number alignment
- Visual animated carrying
- Current operation for each column can be hidden
- Operands of the current operation can be highlighted
- Customizable interface colors
- Adjustable animation speed
- Different interfaces for iPhone and iPad
- 25 six-piece animal jigsaw puzzles
- Puzzle feature can be turned on or off
Reviews and Endorsements:
Fun Educational Apps:
“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.”
Professor Tim Pelton reviewed the sister app 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.”
Teacher endorsement:
“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.”
— Rita Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada
Other iDevBooks Math Apps:
Other iDevBooks math apps include Column Subtraction, Long Multiplication, Long Division, Lattice Multiplication, Visual Multiplication Table, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, Decimal Rounding, and more.
Feedback:
New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback.
Privacy:
This app has no ads, no in-app purchases, and does not transmit user data during operation. The app also does not contain links to other apps or to the web.
The program to Primary 2 students would be useful, but also some room for improvement, for example the button a little, the lack of some special effects, such as voice, animation, such as. There are also entitled to do in the Future of Children Award. I hope that this software improve more.
This is SO cool!
VitalityV
My 6 year old has been playing with this App since we bought it! I have to say that I am absolutely amazed by the fact that he is doing 5 digit addition on it and getting the answers right (he is in Kindergarten). The creators of this app have done a great job at helping to teach these kids a solid foundation for learning the basic fundamentals and concepts. I am finding that it is also helping my son understand the right process to do the more difficult math problems without any reminding. I am anxious to try the other math apps by this developer as my son progresses.
GREAT MATH APP!
cjbvm
This is a great app to help "break down" the "carrying" of numbers! When they have the problem 26+44, they first ask the 6+4 so the child would answer 10..they show the carrying of the "1" and the next would be 1+2+4! Very nice! That saif...don't be expecting some "arcade" math game! There's enough of them out there! This is simple straight forward math and when you get a right answer, get a piece to a puzzle!
love this app and the cute pics too
JeannaBakaJJ
My students love this app - it is is great at breaking down the steps in adding numbers with carrying, etc... They are learning and they don't even know it. AWESOME JOB!! Keeps students engaged in skill that could get difficult to learn - especially with my special education students. LOVE IT!
Updated for iOS 26 compatibility.
Version 7.0
The developer, Esa Helttula, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Esa Helttula
Size
15.8 MB
Category
Education
Compatibility
Requires iOS 17.6 or later.
iPhone Requires iOS 17.6 or later.
iPad Requires iPadOS 17.6 or later.
Mac Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
