Question

What will be the unit digit of the squares of the following -a)59, b)71, c)87, (d)125​

Answer 1

Answer:

a)1           b)1            c)9         d)5

Step-by-step explanation:

a)59-here,units place is 9,the square of 9 is 81 here the units digit is 1.

b)71-here units place is 1,the square of 1 is 1 so the units digit is 1.

c)87-here the units digit is 7,the square of 7 is 49 and the units digit is 9.

d)125-here the units digit is 5,the square of 5 is 25 and the units digit is 5.