Math Tricks: Mental Math
v3.02 · 9.9 MB · code 302
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File information
UpdatedApr 20, 2026
PublishedJul 27, 2020
Packageexample.matharithmetics
Versionv3.02 (302)
Size9.9 MB
MD5d47190304c7c7727b379e8b4a0cf353b
Min SDK21
Malware scanTRUSTED
Signature SHA1B0:4F:4C:8B:D3:EA:E0:1A:AD:B3:DF:72:E4:DF:6F:38:74:6D:F0:6A
SignerCN=Antoni Ion
Total downloads10,000,000
This version10,000,000
DeveloperANTONI
Age ratingEveryone
What's new in v3.02
Added Leaderboards
Security scan
TRUSTED
- Developer signature verified 2026-04-20
- Signature SHA1 B0:4F:4C:8B:D3:EA:E0:1A:AD:B3:DF:72:E4:DF:6F:38:74:6D:F0:6A
- File MD5 d47190304c7c7727b379e8b4a0cf353b
How to install Math Tricks: Mental Math v3.02 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 9.9 MB of free storage.
- Grab example.matharithmetics_302.apk — hit the Download button above (9.9 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches d47190304c7c7727…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find example.matharithmetics_302.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Antoni Ion. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Math Tricks: Mental Math — tap Open on the install screen, or find the Math Tricks: Mental Math icon in your app drawer.
Common install errors for Math Tricks: Mental Math
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 5.0 Lollipop or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.