MENTAL CALCULATION: finding the Units Digit of Big Numbers With Large Powers

Here is a video on how to find the Units digit or ones digit of numbers with large powers MENTALLY.
This includes:
1. the concept of cyclicity,
2. Solved examples
3. Shortcut technique to calculate the units digit of numbers with large powers MENTALLY
4. Practice exercises for mastery of the concept.
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Thank you

[@danieldanmola8266]

Wow...this is best explanation on this topic