Partial Products Multiplication helps students learn and practice the partial products multiplication method step by step.
The app gives students a visual way to multiply numbers by breaking the problem into smaller partial products. The partial products are then added to find the final answer.
Students can solve randomly generated problems or enter their own multiplication problems.
The Partial Products Method:
In the partial products method, each place value is multiplied separately. For example, in 39 × 24, the partial products are 36, 120, 180, and 600. These are then added together to get the final answer: 936.
Teacher endorsements:
“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.”
— R. Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada
“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.”
— Z. R. Prowell, Highlands Elementary, Edina, Minnesota, USA
Easy to Use:
The numbers are aligned automatically so students can focus on solving each step. After the student solves each partial product, the correct answer moves into the right place. If the student presses the wrong button, the answer appears above the keyboard but does not move.
Features:
- Step-by-step partial products multiplication practice
- Each number can have 2–3 digits
- Randomly generated or manually entered problems
- Current operation can be hidden
- Operands of the current operation can be highlighted
- Customizable interface colors
- Adjustable animation speed
Other iDevBooks Math Apps:
Other iDevBooks math apps include Column Addition, Long Multiplication, Long Division, Column Subtraction, Visual Multiplication Table, 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.
If I could, I would give it -0 stars. This is a robbery, it is useless,it does not say if the result is wrong.
Helpful app
Brooklyn Today
For those of us who did not use the partial product method when we learned how to multiply large numbers this app is very helpful. It helped me understand the algorithm. I was better able to explain it.My third grade son was having some trouble "seeing" how the process worked and this app broke down the steps for him and gave him visual cues. After just one session he felt that he did not need the color cue anymore and the number prompts were enough.It is an expensive app, but given the level of frustration over homework that has been diffused in my house it was well worth the price. My son is feeling much more confident now.I can see this app also being very helpful in a classroom to give support to visual learners and to those who need help remembering the steps of the algorithm.
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
977.9 KB
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.
