# ColumnAddSub

> ColumnAddSub (iPhone/iPad app by PETER JAMES SIDES.)

- Source: https://appshunter.io/ios/app/columnaddsub/id6463636415 (this page in markdown: same URL + `.md`)
- Developer: [PETER JAMES SIDES](https://appshunter.io/developer/1619752154)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 16.2 · 1 MB
- Languages: English
- Released: 2023-09-20
- Data updated: 2026-05-22
- User reviews in markdown: https://appshunter.io/ios/app/columnaddsub/id6463636415/reviews.md

## What is ColumnAddSub?

An app for parents/mentors to engage with young learners to demonstrate and practice the process of column addition and subtraction.
Helps learners to understand the process by swiping the images in the correct order. Develops deeper understanding by using place value counters prior to the abstract numerals.
Provides practice of the process by completing the examples and sets reasoning problems through the missing digits challenge.


## Version history (last 2 releases)

### 1.1 — 2023-10-23

Fixes for presentation issues, now portrait only.

### 1.0 — 2023-09-20

No release notes.

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## More apps by PETER JAMES SIDES

- [TimesTablesViz](https://appshunter.io/ios/app/timestablesviz/id1619752152)
- [NumberBondsViz](https://appshunter.io/ios/app/numberbondsviz/id1659637462)
- [Five by Five Poker](https://appshunter.io/ios/app/five-by-five-poker/id6443740129)
- [TwoWayTablesViz](https://appshunter.io/ios/app/twowaytablesviz/id6451414440)
- [DysCalcOrder](https://appshunter.io/ios/app/dyscalcorder/id6469149385)

All apps by PETER JAMES SIDES: https://appshunter.io/developer/1619752154

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-22.*