Volume Purchase Program for Education

The Volume Purchase Program allows educational institutions to purchase apps and books in volume and distribute them to students, teachers, administrators, and other employees.* The program also allows app developers to offer special pricing for purchases of 20 apps or more.

Purchase Details

Grid Multiplication
Grid Multiplication by Esa Helttula
$3.99 ea. (1-19 units) $1.99 ea. (20+ units)

Distribution Type

Review Order Books cannot be revoked after they are assigned.
To assign apps or books to users, users must be on devices with iOS 7 or later or OS X 10.9 or later installed. To assign apps to devices, devices must have iOS 9 or later or OS X 10.11 or later installed.
Grid Multiplication
Grid Multiplication by Esa Helttula
plus tax, where applicable

Distribution Type: Redeemable Codes

You will be notified by email once your order has been processed. You will also receive an email receipt showing any applicable taxes. You can check on the status of your order at any time in Purchase History on your Account Information page.

Distribution Type: Managed Distribution

Assign apps by using a Mobile Device Management (MDM) solution, such as the latest version of Apple Profile Manager. You retain ownership of apps only, allowing you to revoke and reassign them as needed. Learn More

You will be notified by email once your order has been processed. You can check the status of your order at any time in your Purchase History.

Distribution Type: Managed Distribution

Assign books to users on iOS 7 or later or on OS X 10.9 or later using a Mobile Device Management (MDM) solution, such as the latest version of Apple Profile Manager. Book assignments are permanent, and cannot be revoked or reassigned. Learn More

You will be notified by email once your order has been processed. You can check the status of your order at any time in your Purchase History.

Place Order Cancel Books cannot be revoked after they are assigned.

Grid Multiplication

By Esa Helttula

Description

This math app can be used to teach and study the grid multiplication method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings.

The grid multiplication app is the latest app in the set of 17 math apps that was reviewed by Wired.com: “A Set of Excellent iPhone Math Apps for the Older Child”.

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!"

Z. R. Prowell, Highlands Elementary, Edina, Minnesota, USA:

"In my class I have used them to assist students with seeing the steps to properly completing multiplication operations such as partial products and partial quotients. There are students who see my examples who still need some guidance, and after using your app have said, "Now I get it." The feature of selecting possible solutions in each step helps some of my students who are still building their multiplication facts. They can gain experience in using these new concepts but not be left behind.

Helping student understanding are the animations. They are smooth and really illustrate a step-by-step understanding of how to complete new styles of multiplication.”

The Grid Multiplication Method

The grid multiplication method is a two-step process. In the example 39 x 24 the numbers are first broken up into 30 + 9 and 20 + 4, and written on a grid. Multiplying the row and column headers then solves each cell of the grid. Eventually the partial products 600, 180, 120, and 36 are added together.

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 partial product 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.

Settings:

- Each number can have from 2 to 3 digits.
- Random and custom problems.
- The current operation 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.
- 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, Long Multiplication, Long Division, Column Subtraction, Visual Multiplication Table, Partial Differences Subtraction, Partial Products Multiplication, 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.

Privacy

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 in Version 5.0

- open worksheets from app (new worksheets can be made on the iDevBooks.com site)
- support for iOS 10.0
- support for shared iPad in school environments

For more information about worksheets and other new features of this version please visit idevbooks.com. Please also get in contact if you have any feedback or you want information about 32 iDevBooks math apps.

Screenshots

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5
Grid Multiplication
View in iTunes
This app is designed for both iPhone and iPad
  • $3.99 ea. (1-19 units)
    $1.99 ea. (20+ units)
  • Category: Education
  • Updated:
  • Version: 5.0
  • Size: 3.2 MB
  • Language: English
  • Seller:
Rated 4+
  • Made for Ages 9–11

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Device-Assignable
Optimized for Shared iPad

Customer Ratings

This application hasn’t received enough ratings to display a summary.