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Partial Products Multiplication

       iOS Universal

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

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 Partial Products Multiplication Method

The partial products multiplication method is a two-step process. In the example 39 x 24, each place value is first multiplied separately. The partial products are added and 36 + 120 + 180 + 600 produces the answer 936.

In the Everyday Mathematics curriculum the partial products method is the focus algorithm for multiplication.

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.

The App has the Following Features:

- Each number can have from 2 to 3 digits.
- The current operation can be hidden.
- You can solve custom and random problems
- The operands of the current operation can be highlighted.
- Colors of the interface can be changed.
- The speed of the animations can be set.

Video of the App

You can see a video of the Partial Products Multiplication app in action at my site idevbooks.com.

Part of a series of 17 iDevBooks math apps

Some of my other math apps are Fraction Math, Column Subtraction, Column Addition, Long Division, Long Multiplication, Multiplication Table, etc.

The iDevBooks math apps contain no ads, in-app purchases, push notifications, tracking, or any kind of data collection whatsoever. The settings screen of each app contains a link to idevbooks.com website for support and feedback. For more information please see the privacy policy at idevbooks.com.

What's new

- fixes a bug that sometimes caused the digits to become unaligned
- sometimes the current operation was shown even when the 'show current operation' setting was not selected
- Retina graphics for the new iPad

Please visit http://idevbooks.com if you have feedback, ideas for new features, or want to see 17 other iDevBooks math apps.

Screenshots

	Screenshot 1 of 10

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Last changed:

Apr 04, 2012

Category:

Education

Developer:

Esa Helttula

Version:

2.1

Average Rating:

5.00 (1)

Size:

0.7 MB

Other Apps By This Developer

• Ancient Egyptian Multiplication
• Column Addition
• Column Division
• Column Subtraction
• Everyday Column-Addition
• Fraction Math
• Grid Multiplication
• Lattice Multiplication
• Left-to-Right Subtraction
• Long Division
• Long Multiplication
• Partial Differences Subtraction
• Partial Quotients Division
• Partial Sums Addition
• Trade-First Subtraction
• Visual Multiplication Table