Question 74
State whether the following statement is true or false:
A number having 7 at its one's place will have 3 at the unit's place of its square.
False Square of 7 =7×7=49 Square of 17 =17×17=289 Square of 27 =27×27=729 and so on.
Question 75
A number having 7 at its one's place will have 3 at the one's place of its cube.
If a number has zeroes at its unit and tens places then square of the number will have 3 zeroes at its end. State whether true or false.
Question 49
The square of 86 will have 6 at the unit's place.