Column Subtraction

Разработчик: Esa Helttula
Скачивания
Доход

Описание

This math app can be used to teach and study the column subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random or custom subtraction problems with small and large numbers. The number of digits in the numbers can be set.
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.
Скрыть Показать больше...

Скриншоты

Column Subtraction Частые Вопросы

  • Приложение Column Subtraction бесплатное?

    Да, Column Subtraction полностью бесплатное и не содержит встроенных покупок или подписок.

  • Является ли Column Subtraction фейковым или мошенническим?

    Недостаточно отзывов для надежной оценки. Приложению нужно больше отзывов пользователей.

    Спасибо за ваш голос

  • Сколько стоит Column Subtraction?

    Приложение Column Subtraction бесплатное.

  • Сколько зарабатывает Column Subtraction?

    Чтобы получить оценку дохода приложения Column Subtraction и другие данные AppStore, вы можете зарегистрироваться на платформе мобильной аналитики AppTail.

Оценки пользователей
Приложение еще не оценено в Пакистан.
История оценок

Column Subtraction Отзывы Пользователей

WONDERFUL APP!

JeannaBakaJJ on

Соединенные Штаты

This is an excellent way for my special education students to practice the skills they have learned in solving subtraction problems with regrouping. This is such a hard concept for them to work out on paper many times and this app makes it fun and at the same time shows them what they need to do. Then, when THEY actually go to work problems out on paper by themselves they refer to what they app showed them how to do. For some reason it is so much "cooler" to do the way the app shows them verses the way the "teacher" shows them....LOL - my students love this app. GET ALL of Esa's apps - they will have your students asking to solve problems all the time.

I bought both. Try Addition too.

OneAppTooMany on

Соединенные Штаты

This app is a great learning tool for teachers and parents to share with students and kids. The jigsaw puzzle pieces are a nice addition that makes it fun.

Exactly what I was looking for

newpodcastuser on

Соединенные Штаты

For my 1st grader struggling with double and triple digit subtraction. Thank you!

Оценки

История позиций в топах
История рейтингов пока не доступна
Позиции в категории
Приложение еще не было в топах

Ключевые слова

Column Subtraction Конкуренты

Name
Math Fluency with Sports: x, ÷
Cool math game based on sports
Mathemagics: Algebra Practice
Learn fast algebra techniques
Maths Champions game for kids.
Times tables training
Fractions. Smart Pirates
Douay Rheims Catholic Bible
Study The Holy Bible with NJB
Subtraction Wiz Lite
Math drills for subtraction
Attracteur
The beauty of Chaos
Multi Base Blocks Applications
Apps: Addition and Subtraction
Preschool Data Toolbox
Data Collection & Analysis
iWorld US Lite

Column Subtraction Установки

30дн.

Column Subtraction Доход

30дн.

Column Subtraction Доходы и Загрузки

Получите ценные инсайты о производительности Column Subtraction с помощью нашей аналитики.
Зарегистрируйтесь сейчас, чтобы получить доступ к статистика загрузок и доходов и многому другому.