This universal app is part of a set of idevbooks math apps. Reviewed by Wired.com: "A Set of Excellent iPhone Math Apps for the Older Child”.
The Long Multiplication math app can be used to teach and study the long multiplication method.
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!"
Kelly Tenkely, iPad Curriculum:
"The step by step animation and guidance will help students get the column method of multiplication down in no time. The ability to enter their own numbers means that students can input problems from a math curriculum or textbook and work through the step-by-step process with any problem. Your reluctant math students will love this app, it will act as their own personal tutor sitting with them and encouraging them on!"
The long multiplication method
In arithmetic, long multiplication is the standard procedure suitable for multiplying numbers. The method breaks down a multiplication problem into a series of easier steps.
Easy to use
The Long Multiplication math app allows the user to solve a long multiplication problem step by step and animates all the steps. In the steps the user will multiply or add. The correct answer will fly to the right place. If the user presses the wrong button the answer will appear above the keyboard but it will not move.
- The multiplicand can have up to 5 digits
- The multiplier can have up to 4 digits
- You can set your own problems
- You can have decimals in the numbers
- The current operation for each column can be hidden
- The operands for the current operation can be highlighted
- Three different themes
- Native interfaces for iPhone, iPod Touch, and iPad
- Open worksheets of up to 10 problems that are made on the iDevBooks.com site
Other iDevBooks math apps
iDevBooks math apps have been reviewed and endorsed by Wired.com, IEAR.org, Edudemic.com, Teachers with Apps, and other respected sites and organizations.
Some of the other 24 iDevBooks math apps are Column Addition, Column Subtraction, Long Division, Lattice Multiplication, Visual Multiplication Table, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, Decimal Rounding, etc.
Feedback and requests for new features
New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback.
This app has no ads or in-app purchases and it does not transmit any data during the operation of the app. This app also does not contain any links to other apps or the web.
- support for iOS 12
- support for iPhone Xr and Xs Max
- minor bug fixes
Ratings and Reviews
When you get to the second row it carries incorrectly. It carries one column to the left and is visually very confusing.
Developer Response ,
Thank you very much for your valuable feedback. The carrying issue that you describe was fixed in version 4.0, and works correctly now.
~ Wonderful ~
Thank you another wonderful app! I recommend this highly!
I love this app and used to use it in my fourth grade classroom throughout my multiplication unit as a great opportunity for differentiated, engaging practice with instant feedback! I am very disappointed with the new update though, since it makes the app no longer compatible with my 2nd generation iPods. In the world of education, it is not easy to get the newest technology offered especially when as of 3 years ago my district bought me enough iPods for each of my students. I wish I could still use this app on my class set of iPods, but they can no longer be updated with new software versions. Please allow your apps to continue to work with the older iPod software versions since this was created to help teachers and students in the first place.
With Family Sharing set up, up to six family members can use this app.