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Online Abacus & Drawing Class Going On .

Nabanita Das
#OnlineAbacusClasses Going on ..... #OnlineDrawingClassGoingOn .......
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Why to Learn Abacus ? | What Is Abacus ? | How does it help to calculate faster ? | Abacus a Scientific Calculation Method | Know about Abacus | History of Abacus .

Nabanita Das
Abacus is an ancient Chinese method for calculation ... It is more than 2000 yrs old art & skill. Abacus is still widely used in several countries . It is proven technique for the brain development .
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Abacus Tutorial | Mental Calculation for 20 digits

Nabanita Das
#mentalcalculationbystudent #extracurricularactivity  
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Abacus Tutorial | Mental Calculation | Speed Calculation

Nabanita Das
 #mentalcalculationbystudent  #extracurricularactivity
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