1 Squares of numbers from 51 to 59:
Where A is the unit digit of the number and A2 should be written as a two digit number.
2 Square of Numbers having unit digit 5
Where A is the digits except the unit digit of a number.
3 Square of a Number which is nearer to 10x
Square values up to number 30 and cube values up to number 16 are given below: