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In the UCMAS Iran magazine, you will get acquainted with UCMAS news, international abacus competitions, rapid calculations, and mental mathematics.
In the UCMAS Iran magazine, you will get acquainted with UCMAS news, international abacus competitions, rapid calculations, and mental mathematics.
The Android UCMAS application (UCMAS Game App) + Features
Mental Arithmetic Practice
What is Abacus? History, Types & Modern uses | UCMAS
Mental Arithmetic Tests
How to Solve Different Radicals with Various Indices on a Calculator
