Question

Unit's digit in the square of 64 is.
a) 2
b) 4
c) 6
d) 8​

Answer 1

Answer:

(c) 6 is the correct answer.

Step-by-step explanation:

It is because the unit digit of 64 is 4 and 4²=16.

so we will take the unit digit of 16 as the unit digit of 64².

Answer 2

Answer:

8 because square root of 64 is 8 and the units digit is 8