Category: Education
Long Multiplication

Long Multiplication

       iOS Universal

This universal app is part of a set of idevbooks math apps. Reviewed by "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
-The current operation for each column can be hidden
-The operands for the current operation can be highlighted
-Regrouping above or below the equations
-Three different themes
- Native interfaces for iPhone, iPod Touch, and iPad

Other iDevBooks math apps

iDevBooks math apps have been reviewed and endorsed by,,, 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 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.

What's new

- minor interface changes
- new icon


Screenshot 1 of 10

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Last changed:
Mar 06, 2015
Esa Helttula
1.8 MB

Current Version Average Rating:
No data

All Versions Average Rating:
4.00 (43)
Other Apps By This Developer
Column Addition
Column Division
Column Subtraction
Decimal Rounding
Egyptian Multiplication Method
Equal Addition Subtraction
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Fraction Math
Grid Multiplication
Lattice Multiplication
Left-to-Right Subtraction
Long Division
Order of Operations by iDevBooks
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 Fractions Decimals and Percentages
Visual Multiplication Table
Whole Number Rounding
World Factbook Visual Edition
Long Multiplication 4.00 out of 5 based on 43 ratings.