Question

Find one’s digit of the square of i) 44 ii)27

explain with steps​

Answer 1

Answer:

i) 6

ii) 9

Step-by-step explanation:

i) Take smaller numbers with unit digit 4. Like 4, 14 and 24.

4 square is 6

14 square is 196

24 square is 576.

Here you can see that all the squares are ending with 6.

So, the numbers whose unit digit is 4, those number's square always end with 6.

ii) Take smaller numbers with unit digit 7. Like 7, 17 and 27.

7 square is 49

17 square is 289

27 square is 729.

Here you can see that all the squares are ending with 9.

So, the numbers whose unit digit is 7, those number's square always end with 9.