# Multiply Pairs – Mental Math

> Multiply Pairs – Mental Math (iPhone/iPad app by Katsuhiko Yao.)

- Source: https://appshunter.io/ios/app/multiply-pairs-mental-math/id6448858474 (this page in markdown: same URL + `.md`)
- Developer: [Katsuhiko Yao](https://appshunter.io/developer/1543188534)
- Category: Education, Games
- Price: Free
- Age rating: 4+
- Requires: iOS 16.6 · 32 MB
- Languages: English, Japanese
- Released: 2023-06-20
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/multiply-pairs-mental-math/id6448858474/reviews.md

## What is Multiply Pairs?

Created by a Math Teacher

QuickMath Series

A math training app
designed to strengthen your calculation skills
and logical thinking in a short time.

A math × brain training series
for improving number sense.

Find pairs of numbers
and reach the target number!

In this app, you can practice
multiplication.

Search for pairs of numbers
that produce the target value.

While playing, you can improve:

• multiplication
• Mental math skills
• Calculation speed

Suitable for

• Advanced elementary school students
• Middle school math practice

QuickMath Series

• SumX – number pair puzzle
• SumXMinus – negative number training
• Common Divisor – divisor brain training
• Exponent – power calculation challenge

Train your math brain every day.
Perfect for students, teachers, and anyone who wants to train their math brain.


## Version history (last 5 releases)

### 2.0.3 — 2026-06-23

Improved the Result View layout on certain tablet devices, including the iPad Air 11-inch.

* Fixed layout issues on the result screen
* Improved visibility of scores and buttons
* Enhanced overall user experience

### 2.0.2 — 2026-05-03

* Improved the stability of the in-app review prompt.
* Adjusted some screen transition behavior for a smoother experience.

### 1.1.4 — 2026-03-25

• Started improving the result screen
• Added banner ads
• Improved overall stability

MultipleToX is a math training app created by a math teacher.
More classroom-friendly updates are coming soon.

### 1.1.3 — 2026-02-23

学習に集中できるよう、動作の安定性と操作性を改善しました。
Improved stability and usability to help users stay focused.

### 1.1.2 — 2025-12-12

・一部デザインの調整を行いました。
・Minor UI adjustments.

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## More apps by Katsuhiko Yao

- [QuickAge](https://appshunter.io/ios/app/quickage/id1545922757)
- [QuickCheck3](https://appshunter.io/ios/app/quickcheck3/id1566831890)
- [AddToMinusX](https://appshunter.io/ios/app/addtominusx/id6443640661)
- [Power of 2](https://appshunter.io/ios/app/power-of-2/id6450391335)
- [Neg Multiply – Brain Training](https://appshunter.io/ios/app/neg-multiply-brain-training/id6450744705)

All apps by Katsuhiko Yao: https://appshunter.io/developer/1543188534

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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 2026-07-08.*