Partial Difference Subtraction
教育
USD 3.99 · 專為 iPad 設計
亦包括於
Partial Differences Subtraction helps students learn and practice the partial differences subtraction method step by step.
The app gives students a visual way to subtract numbers by working with each place value separately. The partial differences are then combined to find the final answer.
Students can solve randomly generated problems or enter their own subtraction problems. The number of digits can be adjusted for different skill levels.
The Partial Differences Method:
In the partial differences method, each place value is subtracted separately from left to right. For example, in 936 − 580, the partial differences are 400, −50, and 6. These are then combined to get the final answer: 356.
Teacher endorsement:
“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
Easy to Use:
The numbers are aligned automatically so students can focus on solving each column. After the student solves the operation for each column, 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 differences subtraction practice
- Each number can have 2–3 digits
- Randomly generated or manually entered problems
- Current operation for each column 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 Quotients Division, Partial Products Multiplication, 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.
評分與評論
- 此App未收到足夠的評分或評論以顯示概況。
Updated for iOS 26 compatibility.
開發者Esa Helttula表明App的私隱慣例或包括下列資料的處理。詳情請參閲 開發者的私隱政策 。
不收集資料
開發者不會從此 App 收集任何資料。
輔助使用
開發者尚未表示此 App 支援哪些輔助使用功能。 進一步了解
資料
- 供應商
- Esa Helttula
- 大小
- 900.1 KB
- 類別
- 教育
- 相容性
須使用 iOS 17.6 或以上版本。
- iPhone
須使用 iOS 17.6 或以上版本。 - iPad
須使用 iPadOS 17.6 或以上版本。 - Mac
須使用 macOS 14.6 或以上版本及配備 Apple M1 或以上版本晶片的 Mac。
- iPhone
- 語言
- 英文
- 年齡分級
4+
- 4+
- 適合 9 – 11 歲
- 版權
- © Esa Helttula
