| Nhà phát triển: | iDevBooks (27) | ||
| Giá bán: | $3.99 | ||
| Xếp hạng: | 0 | ||
| Đánh giá: | 0 Viết đánh giá | ||
| Danh sách: | 0 + 0 | ||
| Điểm: | 0 + 0 ¡ | ||
| Windows Store | |||
Mô tả
The equal addition subtraction method is also called the ‘borrow and repay’ method or equal additions method for subtraction. Today the method is used in Australia and Latin America. The equal addition used to be a very popular method for subtraction in US until the middle of 20th century.
The equal addition subtraction method
The method is based upon the idea that adding the same amount to two numbers will not affect the difference between the two numbers. The process can be thought as:
- Work column by column from right to left
- When the digit of the first number is smaller than the corresponding digit of the second number, add ten to the digit of the first number and one to the digit of the second number in the next column to the left.
Review by professor Tim Pelton
Tim Pelton, assistant professor of Mathematics Education at the University of Victoria, reviewed the Column Subtraction app (that is very similar to this app) and wrote:
“With the ‘show current operation’ option turned on, they are constantly reminded of the next step, which can lead to efficient practice of the procedure. Then by turning off the current operation your child is able to practice remembering the steps on his/her own. Because no wrong entries are allowed the app provides a passive form of positive reinforcement and your child will likely improve in both confidence and competence with respect to the procedure.”
Easy to use
The numbers are aligned automatically so that you can concentrate on solving the operations for each column. After you solve the operation for each column the correct answer will fly to the right place. If you tap the wrong button the answer will appear above the keyboard but it will not move.
Settings:
- Each number can have up to 5 digits
- Problems can be random or custom
- The current operation for each column can be hidden
- The operands of the current operation can be highlighted
- The speed of the animations can be set
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.
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.
Ảnh chụp màn hình
Tính năng mới
- Phiên bản: PC
- Cập nhật:
Giá bán
- Hôm nay: $3.99
- Tối thiểu: Miễn phí
- Tối đa: $3.99
Theo dõi giá
Nhà phát triển
- iDevBooks
- Nền tảng: Windows Ứng dụng (27)
- Danh sách: 1 + 0
- Điểm: 0 + 1 ¡
- Xếp hạng: 0
- Đánh giá: 0
- Giảm giá: 0
- Video: 0
- RSS: Đăng ký
Điểm
Không tìm thấy ☹️
Xếp hạng
Không tìm thấy ☹️
Danh sách
Không tìm thấy ☹️
Đánh giá
Hãy là người đầu tiên đánh giá 🌟
Thông tin bổ sung
- Phiên bản: PC
- ID: 9NKBNXMXGFPP
- Danh mục:
Windows Ứng dụng›Giáo dục - HĐH:
PC,Surface Hub - Kích thước:
38 Mb - Ngôn ngữ được hỗ trợ:
English - Xếp hạng nội dung:
EVERYONE - Windows Store Xêp hạng:
0 - Cập nhật:
- Ngày phát hành:
Danh bạ
- Trang web:
https://idevbooks.com
Bạn cũng có thể thích
-
- Subtraction Champ
- Windows Ứng dụng: Giáo dục Bởi: NBurgess
- Miễn phí
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC Subtraction Champ is a fun and exciting way for children to learn and practice subtraction. The game features 4 levels of difficulty: - Level 1 - 10 subtraction questions with the aid ... ⥯
-
- First grade Math - Subtraction
- Windows Ứng dụng: Giáo dục Bởi: Sergey Malugin
- $1.99
- Danh sách: 0 + 1 Xếp hạng: 0 Đánh giá: 0
- Điểm: 1 + 0 Phiên bản: PC Intuitive interface powered by handwriting input and a fun and engaging mini game in addition to a regular math trainer mode make our app stand out from the crowd of generic math ... ⥯
-
- Kids Addition & Subtraction
- Windows Ứng dụng: Giáo dục Bởi: Sumit Dutta
- Miễn phí
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 3 (2.3) Phiên bản: PC Kids Addition and Subtraction is an interactive game which provides training of addition and subtraction skils to kids. With this app kids can learn addition and subtraction with ... ⥯
-
- Place Value Subtraction
- Windows Ứng dụng: Giáo dục Bởi: iDevBooks
- $3.99
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC Understanding the concept of places and values in the base then system is essential for long-term understanding. In subtraction place value is essential to the concept of regrouping. ... ⥯
-
- Additional & Subtraction First Step
- Windows Ứng dụng: Giáo dục Bởi: epopipo
- Miễn phí
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC This App is Additional & Subtraction Lesson And Check Application. If your children use This App, Additional & Subtraction Very well. ⥯
-
- Math Pets Addition
- Windows Ứng dụng: Giáo dục Bởi: BoyOfGreen
- Miễn phí
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 2 (5.0) Phiên bản: PC Math Pets Addition is a learning game made for kids, and made by kids. Set the numbers or range of numbers you want to practice, then start the game. Every answer you get right gives ... ⥯
-
- Mental arithmetic(Addition)
- Windows Ứng dụng: Giáo dục Bởi: Ivan Bondaruk
- * $1.19
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC I developed this application for you so that everyone can develop their brain just by taking 15 minutes of their time that they spend at the computer. It is easy and productive. Check ... ⥯
-
- Kids Maths Learning
- Windows Ứng dụng: Giáo dục Bởi: ACKAD Developer
- $10.99
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC Kids Math Learning application is for kids to learn many maths items. Learn addition, subtraction, multiplication, division with steps. In addition and subtraction you can learn with ... ⥯
-
- Mental Arithmetic Training
- Windows Ứng dụng: Giáo dục Bởi: ALTA WARE
- * $1.69
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC It is an application to train mental arithmetic abilities. It can be used in each of the following modes. · Simple : Simple form of problem · Equation : Equation completion problem · ... ⥯
-
- Abacus Trainer 1
- Windows Ứng dụng: Giáo dục Bởi: Hamster Force Multimedia Ltd
- $4.99
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC Abacus Trainer is a question generator made in accord with the abacus skills acquired in addition and subtraction. It provides a whole range of options that can be flexibly selected to ⥯
-
- Math Games for Kids
- Windows Ứng dụng: Giáo dục Bởi: IDZ Digital Private Limited
- $39.99
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC Math Games for Kids is an award-winning math learning app for 4, 5 and 6 year olds with 180+ math learning games, which provides a fun and cool way to start your kids and toddlers ... ⥯
-
- MyMathBook Free
- Windows Ứng dụng: Giáo dục Bởi: Innolance Inc.
- Miễn phí
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC MyMathbook is a simple, easy-to-use Windows Store application intended for young children. The app is a fantastic way for children to learn the fundamentals of Math in a fun-filled ... ⥯
-
- MathBoard by PalaSoftware
- Windows Ứng dụng: Giáo dục Bởi: PalaSoftware
- $4.99
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 8 (4.7) Phiên bản: PC MathBoard is a highly configurable math app appropriate for all school aged children. Beginning in kindergarten, with simple addition and subtraction problems, through elementary ... ⥯
-
- Mental Arithmetic Paper Pro
- Windows Ứng dụng: Giáo dục Bởi: lzn1007@outlook.com
- $1.99
- Danh sách: 0 + 0 Xếp hạng: 0 Đánh giá: 0
- Điểm: 0 + 0 Phiên bản: PC Oral arithmetic practice problems such as addition, subtraction, multiplication and division can be randomly generated, and typeset as A4 paper images for direct printing. You can ... ⥯