Properties of Square - Unit Digit of Square


 
 
Concept Explanation
 

Properties of Square - Unit Digit of Square

Property:  If a number has a square root in N, then its unit digit must be 0, 1, 4, 5 or 9.

Units digit of square: 0 1 4 5 6 9
Units digit of square root: 0 1 or 9 2 or 8 5 4 or 6 3 or 7
.... (More Text Available, Login?)
Sample Questions
(More Questions for each concept available in Login)
Question : 1

What is the unit digit of  the square of 93 and 72 ?

Right Option : A
View Explanation
Explanation
Question : 2

If two three digit number has its unit digit 8 and 6 respectively what will be the unit digit in their squares ?

Right Option : D
View Explanation
Explanation
Question : 3
The unit digit of  the square of 1230 is _________________

 

Right Option : C
View Explanation
Explanation
 
 


Students / Parents Reviews [20]