Left-to-Right Subtraction

United States / US English

Left-to-Right Subtraction

Esa Helttula,


Store Category Version Last Update Avg. ratings
Apple Education 4.1 September 13, 2016 0.0

ASO Score & Checklist

55%
App Name
You app name is quite long enough. 25 characters

You can improve it by adding a few relevant keywords. Check out our Keywords Tool to find the best keywords for your app.

App Description
The length of your description looks great. 2703 characters

You have 2703 characters. Don’t forget to add important and relevant keywords in your description to improve your iTunes app page and optimize your SEO.

Screenshots
You could add some screenshots.

It is recommended to use all 5 available slots and to use optimized screen dimensions for each device. Make sure to include some text to describe your app on each screenshot. Don’t forget showcase your best features on the first two screenshots as they will be displayed in the Search Results on the App Store.

Versions
Your last version was released more than 3 months ago. Update your app with new features and/or some bug fixing.

Version 4.1 released on September 13, 2016

Version 4.0 released on April 12, 2016

Version 3.0 released on September 12, 2014
- minor interface changes - new icon

Version 2.3 released on April 05, 2014
Interface updates for iOS 7. Please visit http://idevbooks.com if you have questions or feedback about any of the 26 iDevBooks math apps.

Unlock all AppTweak features, start your 7-day free trial

Start your free trial

App Description

This math app can be used to teach and study the left-to-right 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 subtraction problems and each step is made clearer with an animation. The Left-to-right Subtraction Method The left-to-right subtraction method is a two-step process. In the example 936 - 581, the number to be subtracted is first written in an expanded form: 500+80+1. Each of the parts is then subtracted from the starting number. In our example 936-500=436, 436-80=356 and finally 356-1=355. In the Everyday Mathematics curriculum the left-to-right subtraction method is one of the algorithms for subtraction. 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!" The App is Easy to Use Each step of the multi-step process is animated and the numbers are aligned automatically so that the user can concentrate on solving the operations for each step. After you solve each sub-operation the correct answer will fly to the right place. If you press the wrong button the answer will appear above the keyboard but it will not move. Difficulty can be set with Settings: -The numbers can have 2 or 3 digits. -The current operation can be hidden. -The operands of the current operation can be highlighted. -Colors of the interface can be changed. -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. Some of the other 24 iDevBooks math apps are Column Addition, Long Multiplication, Long Division, Column Subtraction, Visual Multiplication Table, Partial Differences Subtraction, Partial Products Multiplication, Partial Sums Addition, Decimal Rounding, 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.

App Screenshots

Left-to-Right Subtraction Screenshot Left-to-Right Subtraction Screenshot Left-to-Right Subtraction Screenshot Left-to-Right Subtraction Screenshot

Left-to-Right Subtraction Ranking History | Education

Left-to-Right Subtraction daily app ranking in Education category for the last 30 days.

Left-to-Right Subtraction Worldwide Rankings | Education

Left-to-Right Subtraction rankings per country in Education category.

Unlock all features after signing up

Get more ASO recommendations, app rankings, store data, keywords insights and more.

Start your free trial

App Keyword Tool

Use AppTweak Keyword tool to audit, optimize and monitor your keywords effectively.


Mobile App Analytics

All insights and data to measure your app’s performance over time and across countries.

Get the latest tips and tricks to improve your ASO Learn all ASO best practices to boost your app on top of the charts and beat your competitors.

  • 5 Push Notifications Strategies to Increase App Engagement

    This week, we’re having the pleasure to collaborate once again with Leanplum, mobile marketing platform. In this article, find five push notifications strategies that will help you increase your app engagement. Read the entire post on Leanplum blog. Sometimes, you have a great app, but lack engagement. Or you drive downloads, but your retention is low. There are two possibilities here: you need to optimize certain user flows, or you’re missing out on key opportunities …

  • 9 Tips to Make Your App Icon Stand Out

    Icons play an extremely important role in the Click Through Rate (CTR) of a mobile application. Just like in real life, the 1st impression matters a lot in the App Store. Apps need to have optimized icons to stand out from others. Check out our 9 Tips to help you create awesome icons… The importance of visual content People tend to feel overwhelmed by the humongous amount of various information and content present everywhere. Their …