Question

1.What will be the unit digit of the squares of the following numbers?(with process)

(i) 81

(ii) 272

(iii) 799

(iv) 3853​

Answer 1

Step-by-step explanation:

1. 81 = 1² = 1 ,, unit digit is 1
2. 272= 2² = 4 ,, unit digit is 4
3. 799 = 9² = 81 ,, unit digit is 1
4. 3853 = 3² = 9 ,, unit digit is 9