Free download Flash Mental Arithmetic APK for Android, PC. Latest version is 1.20, update at September 15, 2015
Flash Mental Arithmetic version 1.20 is only one variant.
"Rome was not built in a day."You will become the world record holder by using this app.In Japanese, Flash mental arithmetic is called "Flash Anzan".Then, "Soroban" (Japanese Abacus) is a...