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What will be the unit digit of the squares of the number? 799

What will be the unit digit of the squares of the  number?  
799

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years ago
Dear Student

The unit digit of square of a number having 'a' at its unit place ends with a×a.
The unit digit of the square of a number having digit 9 as unit’s place is1.
∴ Unit digit of the square of number 799 is equal to1.

Thanks

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