# Math Cards - Addition & Subtraction

> Educational app for practicing addition and subtraction math facts. (iPhone/iPad app by Koji Iida.)

- Source: https://appshunter.io/ios/app/math-cards-addition-and-subtraction/id1138237758 (this page in markdown: same URL + `.md`)
- Developer: [Koji Iida](https://appshunter.io/developer/955305523)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 9.3 · 19 MB
- Languages: American English, Japanese
- Released: 2016-09-02
- Data updated: 2026-06-05
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/math-cards-addition-and-subtraction/id1138237758/reviews.md

## What is Math Cards?

This is the app to study the addition and subtraction.

I developed this app for my 7-year-old daughter.

## Key features

- Addition practice
- Subtraction practice
- Flashcard format
- Designed for young learners
- Basic arithmetic skills

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/math-cards-addition-and-subtraction/id1138237758/reviews.md

### 4/5 — 虫食いが。

*2024-08-14, version 1.3*

虫食いになると、...となって、計算ができません。
解消法はないのでしょうか？

### 5/5 — あ

*2023-03-14, version 1.3*

ちあたあたあたあたあたあたあたあ

### 4/5 — 使いやすいが

*2022-08-18, version 1.3*

算数セットについている計算カードには10と0の問題もあったが、こちらのアプリはないため結局別にタイムを計らなくてはならず大変やったので止めました。

### 4/5 — 画面に入りきらない

*2022-08-04, version 1.3*

こちらはiPhone第二世代です。
携帯自体は長めな方だと思うのですが、画面を横にしても三つの足し算(虫食い)の時に数式が入りきらず端が(…）と表示されて困っています。式が全部表示されないので答えられません。文字サイズを一番小さくしたりしたのですが解決されず…

そこ以外はシンプルで隙間時間にも取り組みやすく練習するのに良かったと思います。

### 5/5 — ありそうでなかった！

*2021-09-12, version 1.3*

10までの足し算は市販のドリルだと数ページで終わり繰り上がり算に入ってしまうため、こういう物を探していました。
親が横に座って(正解ならば)タップして次の問題へ進むように使っているのでどの計算が苦手かも把握しやすいです。
シンプルで設問数もちょうど良く気が散らずにできるのも嬉しいです。
素敵なアプリを作ってくださりありがとうございました！！

### 5/5 — 素晴らしい！

*2021-04-09, version 1.3*

学校に計算カードを忘れてきたのをきっかけに使ってみました。めくる手間、シャッフルする手間、時間をはかる手間が省けてとっても便利！子供も楽しんでやってます。

### 3/5 — もっと使いたいので

*2020-09-29, version 1.3*

問題数の調節ができれば嬉しいです。

### 5/5 — これいいです！

*2019-12-26, version 1.3*

毎日やってる、たしざん、ひきざんカード、出先でもできるのがいいですね(^^)娘も楽しんで取り組んでいました！

### 4/5 — シンプルで無駄がなく、計算に集中できる

*2019-10-23, version 1.3*

すごくいいです。
ムダな機能がなく、広告もエロゲーの広告のような子ども向けにあり得ないものも出てこない。シンプルな画面も気が散りやすい小学生にもってこいです。
むしくい算はカードにないため、ありがたいです。120円の価値、あります！
星１つ足りないのは、タイム記録のリセットがないから。途中でやめた時間が、最短になったままなので、最高タイムが分からないのがいくつかあります。
途中でやめたら記録されないとか、リセットできるとか、追加されたら嬉しいです。

### 5/5 — 助かりました☆

*2019-08-20, version 1.3*

お出掛けの時に算数カードを持ってくるのを忘れてしまって、何かいいアプリが無いかと探して見つけました。
子供もタップするだけで次の問題に行くので楽しく出来て助かりました☆

## Frequently asked questions about Math Cards

### What ages is Math Cards - Addition & Subtraction suitable for?

Math Cards - Addition & Subtraction is suitable for children aged 4 and up, as indicated by its age rating. This makes it ideal for early elementary school students.

### What math skills does Math Cards - Addition & Subtraction focus on?

This app specifically focuses on practicing addition and subtraction. It aims to help users build foundational arithmetic skills through a flashcard-style approach.

### Is Math Cards - Addition & Subtraction free to use?

Yes, Math Cards - Addition & Subtraction is free to download and use. It also offers in-app purchases, which may provide additional content or features.

### Does Math Cards - Addition & Subtraction have ads?

No, Math Cards - Addition & Subtraction does not contain advertisements. This provides an uninterrupted learning experience for young users.

### What devices can I use Math Cards - Addition & Subtraction on?

Math Cards - Addition & Subtraction is available for iPhone, iPad, and iPod devices. This allows for flexible learning across Apple's mobile ecosystem.

### How often is Math Cards - Addition & Subtraction updated?

The app was last updated on September 7, 2016, with version 1.3. While it has not received recent updates, its core functionality for addition and subtraction remains stable.

### What is the developer's background for Math Cards - Addition & Subtraction?

The app was developed by Koji Iida, who created it specifically for his 7-year-old daughter. This personal motivation suggests a focus on user-friendly and effective learning for children.

## Version history (last 4 releases)

### 1.3 — 2016-09-07

This app has been updated by Apple to display the Apple Watch app icon.

- Bug fixes.
- Addition1 x Wormy available for free.

### 1.2 — 2016-09-02

- Add arithmetical restorations mode.
- UI improvement.
- Bug fixes.

### 1.1 — 2016-08-18

Bug fixes.

### 1.0 — 2016-08-17

No release notes.

## Apps similar to Math Cards

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Monster Addition & Subtraction](https://appshunter.io/ios/app/monster-addition-and-subtraction/id1438032422) | 4.2 (85) | Free | Education |
| [Math Addition And Subtraction!](https://appshunter.io/ios/app/math-addition-and-subtraction/id6447770096) | 4.6 (33) | Free | Education |
| [Kids Math Games - Addition](https://appshunter.io/ios/app/kids-math-games-addition/id726099848) | 4.4 (107) | Free | Education |
| [Math for kids: Addition](https://appshunter.io/ios/app/math-for-kids-addition/id1591565380) | 4.4 (57) | Free | Education |
| [Math - Addition & Subtraction](https://appshunter.io/ios/app/math-addition-and-subtraction/id1562989947) | 4.8 (19) | Free | Education |
| [Smart Kidz Club: K-5 Math App](https://appshunter.io/ios/app/smart-kidz-club-k-5-math-app/id1437351073) | 4.4 (319) | Free | Education |

## More apps by Koji Iida

- [Dilution Calculator](https://appshunter.io/ios/app/dilution-calculator/id955305524)
- [9x9 Cards](https://appshunter.io/ios/app/9x9-cards/id1254925679)

All apps by Koji Iida: https://appshunter.io/developer/955305523

## Related topics

[koji iida](https://appshunter.io/ios/topics/koji-iida) · [math addition and subtraction](https://appshunter.io/ios/topics/math-addition-and-subtraction)

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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 2026-06-05.*