Question

What will be the unit digit of the squares of the following numbers? (i) 81 (ii) 272 (iii) 799 (iv) 3853 (v) 1234 (vi) 26387 (vii) 52698 (viii) 99880 (ix) 12796 (x) 55555

Answer 1

(i) 81=1
(ii) 272=4
(iii) 799=1
(iv) 3853=9
(v) 1234=6
(vi) 26387=9
(vii) 52698=4
(viii) 99880=0
(ix)12796=6
(x) 55555=5

Answer 2

(i) 81=1

(ii) 272=4

(iii) 799=1

(iv) 3853=9

(v) 1234=6

(vi) 26387=9

(vii) 52698=4

(viii) 99880=0

(ix)12796=6

(x) 55555=5