# Subtraction with regrouping — Subtractions with eggs

> Subtractions with eggs (iPhone/iPad app by Red Hong.)

- Source: https://appshunter.io/ios/app/subtraction-with-regrouping/id838762880 (this page in markdown: same URL + `.md`)
- Developer: [Red Hong](https://appshunter.io/developer/542314714)
- Category: Education
- Price: $0.99
- Age rating: 4+
- Requires: iOS 15.6 · 7 MB
- Languages: American English
- Released: 2014-03-28
- Data updated: 2025-12-14
- User reviews in markdown: https://appshunter.io/ios/app/subtraction-with-regrouping/id838762880/reviews.md

## What is Subtraction with regrouping?

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 understand subtraction and this app dynamic to generate subtraction's questions, so you can get  a lot of practice questions.

There are 3 functions in this app:
Function 1-> Subtract one-digit numbers - up to 10
Function 2->Subtract two-digit numbers - with regrouping
Function 3->Subtraction practices game (Play it,tilt to move left or right.)
 
The function 2 can help kids learn subtraction with regrouping more easy.
For example: 82-27 =?
you can follow the steps to do subtraction by regrouping:
1. 2  is less than 7, so we need to regroup 1 ten as 10 ones, drag 1 ten to ones’  box.
2.  After regroup,  there are 7 tens and 12 ones.
3. Click 7 eggs to hatch out 7 birds
4. Click  2 tens eggs to  hatch out 20 birds
5. Check the remaining number of eggs, click the right answer's button

It has 3 levels in the function 2,you can click the star button to switch levels:
1 star level : subtraction that don't need regrouping
2 stars level: 2 digits minus 1 digit and need regrouping
3 stars level: 2 digits minus 2 digits and need regrouping
  
If you are interested in this app, you can watch the following video: 
 https://www.youtube.com/watch?v=2MVMSE1kIyk
  
As a MOMs with Apps member,we follow the "Know What's inside" best practices for kids' apps. 
http://momswithapps.com/


## Version history (last 5 releases)

### 2.3 — 2025-08-15

minor bugs fixed.

### 2.2 — 2022-04-09

minor bug fixed

### 2.1 — 2017-07-27

Update screenshot

### 2.0 — 2017-07-24

1. UI re-design
2. add new functions
3. support 64 bits

### 1.0 — 2014-03-26

No release notes.

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## More apps by Red Hong

- [BoPoMo一起Fun](https://appshunter.io/ios/app/bopomofun/id542314711)
- [台灣錢幣真好玩](https://appshunter.io/ios/app/id544638704)
- [BoPoMo一起Fun for iPhone](https://appshunter.io/ios/app/bopomofun-for-iphone/id549404996)
- [Multiplying eggs](https://appshunter.io/ios/app/multiplying-eggs/id577006371)
- [Adding Eggs](https://appshunter.io/ios/app/adding-eggs/id587756613)
- [Decorate Alphabets](https://appshunter.io/ios/app/decorate-alphabets/id667226142)

All apps by Red Hong: https://appshunter.io/developer/542314714

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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 2025-12-14.*