Question

5. Find the digits at the ones place in the squares of the following numbers:
(a) 19
explain it​

Answer 1

Answer:

19² has 1 as its units place.

Step-by-step explanation:

We must find,

The units digit in the square of 19

Now

19 = 10 + 9

So,

19² has its units place of 9² = 81

So,

19² has 1 as its units digit.

Now, we can also check it,

19² = 361

So you see its correct, it's always correct because units place is not disturbed while multiplication.

Hope it helped and believing you understood it........All the best