| 開發人員: | Esa Helttula (16) | ||
| 價錢: | $3.99 | ||
| 排名: | 0 | ||
| 評測: | 0 寫評論 | ||
| 清單: | 1 + 0 | ||
| 點數: | 0 + 5 (5.0) ¡ | ||
| App Store | |||
描述
The column subtraction method is also known as columnar subtraction, long subtraction or longhand subtraction.
Review by professor Tim Pelton
Tim Pelton, assistant professor of Mathematics Education at the University of Victoria:
“If your goal is to help your child to master the traditional subtraction algorithm then Column Subtraction may be the ideal App.”
“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.”
Endorsed by teachers
Rita 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!"
Easy to Use
The numbers are aligned automatically so that you can concentrate on solving the operations for each column. Pressing the rename-button carries out renaming which is animated step by step so you can see what happens. You can also solve each step during the renaming by setting automatic renaming to off in the settings. Renaming over several columns is also supported.
After solving the operation for each column the correct answer will fly to the right place. If the user presses the wrong button the answer will appear above the keyboard but it will not move.
25 Six-piece Jigsaw Puzzles
The puzzles are pictures of cute animals. Every time the user solves one addition problem, one more piece of a six-piece picture puzzle is revealed.
The picture puzzle feature can be turned off and on at any time.
Settings:
- The number of numbers to subtract can be 2 or 3
- Each number can have from 1 to 5 digits
- Problems can be random or custom
- Renaming can be done manually or automatically
- Renaming can also be called regrouping, trading or borrowing
- 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
- Different interface on iPhone and iPad
- 25 6-piece jigsaw puzzles of animals are shown one piece at a time
- The jigsaw puzzles can be hidden
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 40 iDevBooks math apps are Column Addition, Long Division, Long Multiplication, Lattice Multiplication, Visual Multiplication Table, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, 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.
螢幕擷取畫面
價錢
- 今天: $3.99
- 最小值: $3.99
- 最大值: $3.99
追蹤票價
開發人員
- Esa Helttula
- 平台: iOS 應用程式 (15) macOS 應用程式 (1)
- 清單: 3 + 2
- 點數: 1 + 35 ¡
- 排名: 0
- 評測: 0
- 折扣: 0
- 影片: 0
- RSS: 訂閱
點數
未找到 ☹️
排名
未找到 ☹️
清單
評測
成為第一個評論 🌟
其他資訊
聯絡人
- 個人網站:
http://www.idevbooks.com
你可能還喜歡
-
- Column subtraction method
- iOS 應用程式: 教育 由: Roman Konasov
- 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 0 版本: 1.0 Column subtraction calculator allows you to calculate subtracting (difference) of two numbers, using column subtraction method, and get a worksheet of column subtraction. ⥯
-
- Column Math Solver for schools
- iOS 應用程式: 教育 由: Sergey Dubovitsky
- 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 2 (3.5) 版本: 1.0 Enhance your arithmetic skills with Column Math Solver! Designed for middle school students, this app offers step-by-step guidance on column methods for addition, subtraction, ... ⥯
-
- Subtraction Math Trainer
- iOS 應用程式: 教育 由: Sergey Malugin
- $2.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 1 + 0 版本: 5.0.0 Subtraction Math Trainer is a math learning app designed to help you to practice subtraction. The built-in handwriting recognition allows you to draw answers directly on the screen. ... ⥯
-
- Subtraction with regrouping
- iOS 應用程式: 教育 由: Red Hong
- $0.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 0 版本: 2.3 Subtraction with Eggs app provide the simplest way to learn subtraction by regrouping,it can help kids to know how to borrow in subtraction , this app use hatch out birds to help kids ... ⥯
-
- Column Construction Calculator
- iOS 應用程式: 教育 由: V PUGAZHENTHI
- $1.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 0 版本: 3.0 Column Construction Calculator contains 35 calculators, to measure and calculate different columns and civil engineering parameters. Automatic and accurate calculations and conversions ⥯
-
- Subtraction Mathematics
- iOS 應用程式: 教育 由: PROGRAMIS PRIME LLC
- 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 11 (5.0) 版本: 1.5 SUBTRACTION is a smart math app that teaches children how to subtract multi-digit numbers together. It monitors what the student knows and where they still need practice. It teaches ... ⥯
-
- Subtraction School ! !
- iOS 應用程式: 教育 由: Horizon Business, Inc.
- $4.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 1 + 2 (5.0) 版本: 2.4 Subtraction School ! ! is a great way to learn and practice subtraction. From simple 1-digit problems to more advanced multi-digit problems, Subtraction School ! ! will provide the ... ⥯
-
- Subtraction Concentrated
- iOS 應用程式: 教育 由: Catherine Vitti
- $0.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 1 (5.0) 版本: 3.1.0 Practice solving subtraction problems of one-digit to five-digit numerals. Work column-by-column or by doing the math in your head and selecting from multiple choices. Proper borrowing ⥯
-
- Subtraction Wiz
- iOS 應用程式: 教育 由: The Rocket Studio
- $1.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 0 版本: 3.4 - Great way for kids to do subtraction drills the fun way. Let them become very good at subtracting numbers, which is an important life skill. "Son, do the drills now. Show me some ... ⥯
-
- Lehrer Lämpel: Subtraction
- iOS 應用程式: 教育 由: Claus Zinn
- $1.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 0 版本: 1.8 This educational app supports primary school children (usually from 3rd grade) to practise their multi-column subtraction skills. The two main subtraction methods, namely, the Equal ... ⥯
- -100%
- Long Subtraction
- iOS 應用程式: 教育 由: H Valeur
- ▼ 免費
$0.99-100% - 清單: 0 + 0 排名: 0 評測: 0
- 點數: 3 + 0 版本: 1.1 We created this Long Subtraction Calculator app because we believe learning and mastering the long subtraction method for solving subtraction problems is crucial in order to gain a ... ⥯
-
- Chaipang Subtraction
- iOS 應用程式: 教育 由: Wecref Co., Ltd.
- * 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 0 版本: 1.0.9 1. Features and composition Increase the speed and accuracy of calculations Chaipang Subtraction is a game-based calculation learning app designed to improve children s subtraction ... ⥯
-
- Math Subtraction For Kids Apps
- iOS 應用程式: 教育 由: Learning Apps
- $2.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 0 版本: 2.3 Math subtraction for kids app is the fun way of learning subtraction in math. By using this subtraction app for kids, the children can quickly grasp the rules of subtraction without ... ⥯
-
- Place Value MAB Subtraction
- iOS 應用程式: 教育 由: Aleesha Kondys
- $1.99
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 1 (5.0) 版本: 1.04 Little Monkey Apps MAB Subtraction builds on the previous Apps, Little Monkey Apps MAB Addition and Little Monkey Apps MAB. This App compliments the use of hands on experiences for ... ⥯