# Subtraction Master-Math Game

> Only 10 seconds! Be the Subtraction King. A fun mental math game for kids!

Canonical page: [https://chrome-stats.com/d/com.gamemaster.subtraction](https://chrome-stats.com/d/com.gamemaster.subtraction)

## Overview

- **ID:** `com.gamemaster.subtraction`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** 구도준&KOOKYOTAN
- **Category:** GAME\_EDUCATIONAL
- **Downloads:** 501
- **Version:** 1.1.8
- **Last updated:** 2026-04-28
- **First published:** 2026-02-20
- **Publisher country:** KR
- **Size:** 5.98 MB
- **Data as of:** 2026-09-26
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.gamemaster.subtraction)
- **Website:** [https://kyotankoo-rgb.github.io](https://kyotankoo-rgb.github.io/)
- **Privacy policy:** [https://kyotankoo-rgb.github.io/math-master-privacy/subtraction.html](https://kyotankoo-rgb.github.io/math-master-privacy/subtraction.html)

## Description

🔥 10 seconds of tension! How fast is your brain?<br>  Stop solving boring math problems!<br><br>  &#39;Subtraction Master&#39; is an addictive math game that maximizes mental calculation skills under tight time limits.<br>  It is effective for improving basic skills in children, as well as preventing dementia and exercising the brain in adults.<br><br>  ✨ Key Features:<br>  - 🎮 Immersive Gameplay: Sudden Death mode – one mistake and it&#39;s over!<br>  - Focus hard to reach #1 on the leaderboard.<br>  - 📈 Progressive Difficulty: Naturally improve from simple one-digit subtraction to complex two-digit operations from Round 1 to 3.<br>  - 🏆 Family Competition: Set personal goals like &#39;Beat Dad&#39; or &#39;Reward: Ice Cream&#39;.<br>  - Fun for the whole family.<br>  - ⚡ Play Offline: Lightweight and smooth – play anywhere, anytime without worrying about data!<br><br>  🕹️ How to Play:                                                                                                                                                                           <br>  1. Solve the 10 problems given in each round.<br>  2. The time limit for each question is only 10 seconds!<br>  3. The faster you answer, the higher the bonus score.<br>  4. One mistake or a timeout ends the game! Try to break your high score.<br><br>  🎓 Educational Effects:<br>  - Improve basic subtraction calculation speed.<br>  - Strengthen instant concentration and working memory.<br>  - Increase familiarity with numbers and mathematical thinking.

## Rankings

- #1,395,114 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.gamemaster.subtraction.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.gms.permission.AD_ID`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.gamemaster.subtraction)