- android.permission.INTERNET
- android.permission.ACCESS_WIFI_STATE
- android.permission.ACCESS_NETWORK_STATE
- android.permission.READ_EXTERNAL_STORAGE
- android.permission.WRITE_EXTERNAL_STORAGE
Sep 23, 2019
It’s a most ancient mathematical instrument invented for basic calculation purpose like additions subtraction, multiplication, division, besides these now it is possible to calculate percentage, decimal, negative numbers & advance tool like square root on abacus. This is the best mathematical program used worldwide as complete brain development tool from last few decades.