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Question iWhat wall be the unit digit of the squares of the following numbers(0) 81 () 272(ini) 799(v) 3853 |
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Answer» 1.81= since 1^2 ends up having 1 as the digit at its unit place so 81^2 has 1 as the unit digit. ans=12. 272=Since, 22= 4, therefore, square of 272 will have 2 at it's unit place.So, 2722will have 4 at unit’s place3. 779^2=Since, 92= 81, So, 7992will have 1 at unit’s place4. 3853^2=Since 32= 9, so, 38532will have 9 at unit’s place. |
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