Math Operations v1.55
APK · 14.5 MB · version code 55 · Android 8.0+ · uploaded Jul 11, 2025
- Signature matches the Google Play version Details
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Compared with the latest version
The latest version is v1.56, uploaded Sep 6, 2025 — about 2 months after this one.
- Size: this file is 14.5 MB; the latest is 13.1 MB (1.4 MB smaller).
- Both versions request the same permissions.
File information
- Version
- v1.55 (55)
- Uploaded
- Jul 11, 2025
- Size
- 14.5 MB
- Requires
- Android 8.0+ (API 26)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- ec3b790a9fde0cf2670b8a7e36538d34
- Signing certificate (SHA-1)
- 98:EF:3C:82:A0:47:8A:96:0C:DC:10:F8:C4:ED:A7:C7:78:C1:F1:93
- Signed by
- CN=Daniel Cordoba, OU=duhnnae, O=duhnnae, L=Barcelona, ST=Catalunya, C=es
- File name
- duhnnae-com-mathmatematicas-55-71109678-ec3b790a9fde0cf2670b8a7e36538d34.apk
- Package
- duhnnae.com.mathmatematicas
- Downloads (all versions)
- 10K+
- Age rating
- PEGI 3 · Everyone
What's new in v1.55
Math operations, exercises, equations, fractions and more!
Added binomials.
Added differentiation and integration.
Added math game.
Added words games.
Permissions (13)
This version requests 13 permissions, 1 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) duhnnae.com.mathmatematicas.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run foreground services android.permission.FOREGROUND_SERVICE
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 11, 2025.
- Certificate issued to “duhnnae” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature verified Jul 11, 2025
- Validated against Google Play Jul 11, 2025
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install Math Operations on Android 8.0+
You'll need about 29 MB of free space.
- Download the APK — tap Download APK above (14.5 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap duhnnae-com-mathmatematicas-55-71109678-ec3b790a9fde0cf2670b8a7e36538d34.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be ec3b790a9fde0cf2670b8a7e36538d34. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Math Operations — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 8.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.